This upper receiver is designed to fit any standard mil-spec AR-15 lower without any additional fitting and should work with most Mil-Spec AR-15 upper part kits. The M-LOK slot could be a bit further forward, which would make it a bit better for mounting a light or laser. A silencer will cut recoil by 50% and improve accuracy! Model: Performance Center. The .458 SOCOM DURAMAG SS is a purpose built .458 magazine right from the factory designed to be a no hassle solution to feeding these large caliber cartridges. Part Number: 458BM-2 Review this item Email a friend Description This is one high quality upper assembly, assembled from US made parts. Theres none of the chalky exterior that you see on many mil-spec finishes. PREMIUM .450 BUSHMASTER COMPLETE UPPER-STAINLESS BARREL $510.95 Out of Stock. Out of Stock. We have also included a buyers guide discussing what factors you need to consider when choosing an AR-15 .458 Upper Receiver. WebThis .458 SOCOM upper is compatible with any mil-spec AR-15 lower. When paired with the right barrel it can be one of the best rifles you own. But it has quite a few really nice touches. No forward assist to reduce snagging and simplify operation. In this Article: Advantages of the MSRDownsides of the MSROther AR-Pattern Rifle ReviewsDPMS Panther Arms LR-308 ReviewDPMS LR-308 Review: PhotosDPMS LR-308 Review: Shooting PerformanceDPMS LR-308 Review: Shooting ImpressionsDPMS LR-308 Review: About the DPMS CompanyDPMS LR-308 Review Wrap Up: Is the DPMS LR-308 Any Good? The .458 SOCOM had to be easily loaded onto an existing M-16 Platform without making too many modifications. It accommodates the 458 Socom round. But its forged from7075-T6 aluminum. But if you are on a tight budget, it would make more sense to buy a quality stripped .458 SOCOM upper receiver than to go with a super cheaper fully assembled one as it may not be of good quality. Equipped with functional yet affordable features that make it a great choice for a day at the range, as well as hunting applications. V Seven 458 SOCOM Stainless Match Barrel $519.99 7 models Wilson Combat Recon Tactical .458 SOCOM Upper Receiver Build Kit As Low As (Save Up to 18%) $795.00 ARD AR15 UPPER 458 SOCOM M4 feed ramps are designed for staggered 5.56mm rounds. AR-15 Full Build Kits (Everything Minus Lower) > .458 SOCOM, AR-15 Complete Upper Build Kits > .458 SOCOM, Kits And Combos Featuring Trinity Force Stocks. The .458 SOCOM (Special Operations Command) round is a powerful defensive round with roots in military history. The 458 socom was created because SOMEBODY wanted an AR-15 that pretty much guaranteed a one-shot stop (so long as you got a hit). The upper receiver features a flattop 1913 Picatinny rail and M4 feed ramps. Very disappointed! You can find out more about a product by reading reviews. But therelease latch is enlarged. He lives, writes, and skis in Reno, Nevada. Plus, you dont need to spend a lot of money on this receiver, which will cut your costs if you are building your AR-15 from scratch. Barrel features right hand twist button rifling. You can buy a stripped one or an assembled one; either way, there are some good options out there. So, when choosing a.458 Upper Receiver prioritize durability. The SOCOM is also capable of launching 500- 600 grain bullets at subsonic velocities for suppressed or tactical use. If you only use standard ammunition, this upper receiver will last virtually forever. James Miller is a defensive firearms coach, certified through the ICE Training Company. Weve rounded up a whole bunch of the best 458 Socom uppers for your review. If you want an AR for long-range shooting, you would need to look at other rounds like the .308 Winchester. Copyright var date = new Date(); document.write(date.getFullYear()) Delta Team Tactical. WebAR-15 7.62x39 16" STAINLESS BLACK CLAW PREMIUM UPPER ASSEMBLY / MLOK. Panzer Muzzle Brake works surprisingly well, considering how simple it is. We may earn a commission on purchases from a link. UPC Code: 022188866360. Weba common use. Any one of the upper receivers that we have covered here is a solid choice for your .458 SOCOM. Aluminum is both sturdy and light, while anodized coatings are very rust and corrosion resistant, guaranteeing long-term endurance. However, make sure that they will function with your present upper receiver. An AR-15 like all other firearms require good care and maintenance. Manufactured in-house from gun-barrel-quality bar-stock, the Match Series starts with 416-R in 5R rifling. Maintenance and upkeep, such as cleaning your AR-15 after shooting, are necessary to guarantee maximum performance. Overall,the handguard is really comfortable, sturdy, and usable. Web

CMMG's Resolute 300 Upper Group Kit is chambered in Hornady's 6mm ARC. Your 458 SOCOM AR 15 Upper Receiver will arrive turn-key and ready to shoot out of the box. It mounts to a standard AR-15 lower for an easy setup. And the handguard has asingle M-LOK slot on each sidethats in a decent position for mounting a light or laser, if you need to use M-LOK for that. Both with their own pros and cons. The AR-15 bolt carrier group (BCG) is the heart of your rifle. Overall, if you are looking for an upper receiver for a .458 SOCOM round that is pretty standard, this Upper receiver would be an ideal choice. Included muzzle brake gives you decent recoil reduction for shooting such a big round. If youre a beginner or a casual firearm enthusiast, weve got everything you need to know before purchasing your first .458 SOCOM Upper receiver. The industry standard 1-14 twist barrels seem to be the best choice for over 350 grain bullets and/or subsonic loads and will shoot all suitable bullet weights acceptably well. All the exterior finishesboth the nitride and the anodizingare durable and very well applied. Lastly, the entire upper receiver body ismachined with angular cutstoimprove durabilityandrigidity. It is highly durable, and it comes with an enlarged ejection port to properly eject larger .458 rounds. BTW Im still waiting ammo to arrive before I can shoot it. Check out our guide to gas systems for the ins and outs of tuning an AR. Finding the parts you need to build an AR in .458 SOCOM is going to be a bit more challenging. If you are looking to build your first AR-15 that uses a .458 Upper Receiver, this guide is for you. $689.99 $649.99. Then, it puts it in the chamber, and fires it. WebRadical Firearms 10.5 in. For hunting medium to large game, bullets in the 250 grain 400 grain weight range possess devastating killing power. I went with the 450 bushmaster due to ammo availability..and cost..very happy with it..!! Constructed from the strongest aluminum available, for exceptional durability. You can also mountAR accessories like scopes, sights, flashlights, and lasers on rail systems. However, this is not one of them. Build Your Own Custom Pistol For $299 Or Less! This upper receiver will handle certain types of 458 Socom ammunition that many other upper receivers arent sturdy enough to shoot. Barrels, Choke Tubes & Muzzle Devices; However, it is not advisable to buy an AR upper receiver based on price. No matter what youre doing, youll need the best 458 Socom upper you can get. However, the downside is that the enhancements on this upper receiver limit you to mil-spec parts. One of the smartest ways to go about choosing a .458 Upper Receiver is to know what to look for. The .458 SOCOM round is often compared to the .45-70 cartridge, with which many hunters are probably familiar. Rail systems and handguards have been designed in order to preserve your hands from overheating while firing. Tue: 8:00 am 5:00 pm A lighter .458 SOCM bullet will still damage an assailant and throw off manageable kick when fired. Copyright 2019 Pro2A Tactical LLC. Although nowadays, many gun cleaning solvents dont emit strong fumes or strong odors. But dont let that intimidate you. Obviously, theres a lot more energy in a 458 Socom than a 5.56mm round. WebTheir 14.7 Recon SR Barrel has a purpose built .458 SOCOM barrel extension and 1:14 six groove right hand twist precision button rifling to stabilize big heavy loads. Hence, saving money while providing flexibility to US Military personnel. Get gun deals, hand's on reviews, educational content and updates on law changes daily! It fires suppressed with subsonic ammo without issue, which is recommended if home defense is a goal. And its affordable enough to fit most budgets. Our extensive testing has found the Lancer L5 AWM magazine to be optimal for this round. This is actually good and bad. The one of the other uppers with a free float handguard stated a .875. was waiting for this review! Sothe charging handle is easier to get a hold of and pull, whether youre right-handed or left-handed. Also, by choosing one manufacturer, youre almost guaranteed to have zero compatibility issues across the board since the same manufacturer will use the same specifications for their AR-15 build kits. And its got a few creature comforts, which are handy for making shooting 458 Socom a bit more comfortable. But, if you want a really solid billet upper receiver, get the Wilson Combat Billet Upper Receiver. Still shooting exclusively 5.56mm? While ammunition can be tricky to find, its a good idea to stick to a single bullet weight as the .458 SOCOM is available in some chunky pills from 250 grains up to a full 600 grains. Its about as durable as you can get. It also features a wider ejection port for proper and easy extraction of larger .458 rounds. Button rifled. The AR15 XL Stripped Upper Receiver has an enlarged ejection port door opening and can accommodate the .458 SOCOM, 50 Beowulf, .450 Bushmaster, and other similar large rounds on the AR-15 platform. In the end, youll be happy that you were able to put together a rifle that works well. The issue is the cost of the upper concerns me how many rounds did you put through it because 458 is not a cheap cartridge. Get discounts from top brands and our latest reviews! Free The BEAR Precision machined from 7075-T6 aluminum and explicitly forged for the .458 SOCOM round; it also packs an A3 Upper with M4 feed ramps, 5/8in 24 muzzle threads paired with a Glfa Big Bore S/S Muzzlebrake, and 15 M-LOK Handguards, you cant go wrong with this upper. The upper receiver is constructed to accommodate other AR-15 calibers, and not just the .458 SOCOM round, and because of this, it has a protracted ejection port to extract large cartridges after every shot. Get discounts from top brands & our latest reviews! We have compiled a short list of some of the best .458 SOCOM Upper Receivers available. Barrel is finished off with competition muzzle brake and crush washer. I believe it should be .875 but, BCA didnt say in there description. WebShop By .458 Socom; Shop By 12.7x42; Handgun Kits & Parts . GLFAs Complete 16 SOCOM upper is complete meaning you wont need to bring anything else to the party but your favorite lower. Were reader-supported, which means we may earn a small part of the sale from links to any products or services on this site. Plan to use a dedicated .458 SOCOM lower your current kit is incompatible. WebI have a great deal for those who want some great spare parts or your next build project. Specifically, check that it has a hard-coat anodized finish to prevent rusting and corrosion. Theresno forward assist, which some shooters dislike. Currently offered in straight flute. Barrel nuts can be more tricky for a custom fit as they need to clear the gas block and easily thread onto the upper of your choice. This upper receiver comes in type III hard coat However, at the muzzle end, the handguard has4 picatinny rail sections. Its match grade 416R stainless steel barrel has polished crown/feed ramps, and is threaded. DPMS LR-308 [Review]: The AR, Back to Basics. This upper receiver is constructed from 7075 T6 aluminum and has a hard-coat anodized finish to keep any corrosion or rust at bay. So it makes sense that the CMMG Inc. RESOLUTE 300 Series Upper Receiver Group would be at the top of the heap when it comes to 458 Socom uppers. However, the handguard on this upper receiver is very well designed. Order Status: Check the live status update banner for current processing times. The is a complete assembled OK, youve had both. I have a 243 22 stainless fluted upper from Bear creek that shoots .3 groups at 100 yards using 2 different powder combos along with a 55 grain nosler ballistic tip at almost 4100 FPS. >Reexamining the Evidence on the 9/11 Attacks, >Why Firearm Restrictions and Bans are Racist, >Armored and Dangerous: 100,000 + poorly trained and constantly armed delivery boys. Top 5 Best .458 SOCOM Barrels of 2023 Reviews. Overall, it is a durable upper receiver machined for precision that is ideal for those building a big bore AR-15. Ultimately, thisAero Precisionupper receiver is definitely for AR-15 builders. I have an AR do the .458 uppers just go on the normal 556 lower?? And the Radical Firearms 458 Socom 16 Inch Barrel is no different. So somebody made the 458 Socom to accomplish this. This DPMS replacement barrel is fully chambered and ready to install on an upper receiver. Enlarged latch on the charging handle makes it easy to grip and pull. Web458 Socom Stainless Bright 11" in barrel 1/14 twist 5/8-32 List Price: $275.00. The same goes for when you are reassembling it. E-Lander .458 SOCOM 10-Round Steel AR-15 Magazine, Anderson Manufacturing .458 SOCOM Stripped AR-15 Upper Receiver, Radical Firearms .458 SOCOM AR-15 Magazine - Steel - 10 Round, KAK Industries Modified AR-15 Upper Receiver Assembly - .458 SOCOM, FailZero EXO Coated .458 SOCOM Complete AR-15 Bolt Carrier Group, Radical Firearms .458 SOCOM AR-15 Barrel - 1:14 - 16", KAK Industry .458 SOCOM Hardened Flash Hider - 5/8x24, Rubber City Armory .458 SOCOM AR-15 Bolt Carrier Group - Nitride, Faxon Firearms Gunner .458 Muzzlok 3-Port Muzzle Brake - 11/64x24, Radical Firearms AR-15 Rifle 16" .458 SOCOM - 15" M-LOK MHR Rail, Faxon Firearms .458 SOCOM AR-15 Bolt Carrier Group - Nitride, Faxon Firearms 16" .458 SOCOM Carbine Length Gunner Big Bore AR-15 Barrel, Faxon Firearms 10.5" .458 SOCOM Pistol Length Gunner Big Bore AR-15 Barrel, DURAMAG Stainless Steel 10-Round AR-15 Magazine - .458 SOCOM - Black Follower, YOU MAY ALSO BE INTERESTED IN THESE PRODUCTS. The barrel ischrome moly steel. The fire control consists of a two-stage Wilson Tactical Trigger Unit that has been upgraded with heavy-duty mil-spec springs. Ammo is cheaper! And looking cool matters. Enlarged ejection port accommodates big bore rounds, but still accepts standard AR-15 parts and fits standard lower receivers. SHERMAN, TX. But this upper receiver is reasonably upgraded. Forged metal uppers give the optimal grain structure or orientation. Its designed for those who prefer to custom build their AR-15 guns. WebThis .458 Upper Receiver is machined to fit onto our standard multi cal lower receivers and features an expanded ejection port opening. SHOP Pro2a Tactical line of 458 Socom AR-15 Uppers. WebAR-15 7.62x39 16" STAINLESS BLACK CLAW PREMIUM UPPER ASSEMBLY / MLOK. Easily mount this on any standard AR-15 lower, and youre off and running. Its finished off with a sleek anodized black coating for extra corrosion resistance. CMMG engineered this complete upper out of 7075 T6 forged aluminum, so youre getting the most rigid material right out the gate. The .458 SOCOM is one of the more interesting and powerful rounds to come out of an AR-15. After 60 years, tens of millions of dollars, dozens of attempts, and who knows how many man-hours they might have finally done it. American Firearms was established by firearm fans for firearm fans as a modern-day take on all things that go BOOM. And itimproves organic precision and reliability. If youd like a more compact 458 Socom rifle, this upper receiver isalso available in a 10.5 variant:GLFA AR15 Complete Upper .458 Socom 10.5. Its still a niche round trying to find its place amongst the new ones coming out. How we select gear. When not in use, it serves to protect your bolt carrier group and upper receiver by covering the ejection port. Manufacturer: Smith & Wesson. All Tromix uppers are test fired prior to shipping. The Aero Precision AR-15 Stripped XL Upper Receiver is designed for those who like putting things together. It does also help to follow the necessary safety measures when cleaning your rifle, like ensuring that it is not loaded before you clean it, and using the right equipment for the job. So youll need a forward assist and an ejection port cover. Customize your 458 SOCOM Complete Upper with an optic, muzzle device, rail, bolt carrier group, This means that you need to put this receiver together. This upper receiver is reliable. There are plenty of AR parts, but to build an AR-15 .458 SOCOM rifle, you would need to do some proper research to determine what parts to purchase. The round possesses devastating power. WebThreaded and non-Threaded AR-15 barrels in 5.56 .300 Blackout and .458 SOCOM stainless steel or nitride at DSI Dark Storm Industries Long Island Online and Retail Gun Store. Ill keep on waiting to hear more deals. If you are a hunter or shooter who prefers shoot range shooting, then this round would be an excellent option for your recreational activity. Fri: Closed When it comes to rail systems and handguards, you have a plethora of options in design, color, and style to pick from. All Rights Reserved. Made from high-quality 416R stainless steel, this barrel features a nitride finish for maximum corrosion resistance, nickel teflon extension for added durability and lubricity, and 5R rifling Low Profile Gas Block and Stainless Steel Gas Tube. It takes what it can gets. Like I said,its a well-designed handguard. WebThe upper contains the bolt carrier group, and is the half of the AR-15 the barrel attaches to, so making the right selection of upper parts to match your desired performance is critical. Additionally, the barrel is fitted with abig bore muzzle brake. He shares most of his passion with other gun enthusiasts here on Sniper Country. WebBarrel: Ballistic Advantage 6mm ARC, Rifle Gas, 1:7T, DMR Profile, 416R Stainless QPQ Nitride,. 15" MLOK Rail. Sale. It features a subtle two-tone silver finish with a matte aluminum alloy frame and stainless steel barrel, cylinder, and custom black synthetic grip with wood inserts. Most of the price of this upper receiver pays for the materials. Weighing 23 oz., this stainless steel barrel looks sweet under the rail. A complete upper receiver will almost always be cheaper than putting together a stripper upper receiver with upper part kits. Butit makes shooting 458 Socom surprisingly comfortable, considering how simple it is. If you're looking for good reads,check this articleon 30 rounds magazine. Base model includes a 6061 M4 style upper receiver, black 4150 chromoly barrel, black flash hider, black gas block, bolt/carrier, and charging .458 SOCOM Complete *** Update Code 704tactical DOES WORK NOW ********, BCA AR-15 Complete Upper Assembly, 16 4150 Parkerized Heavy Barrel, .458 SOCOM, $20 off now lol pretty close. WebAR-15 Upper Parts; Complete AR-15 Lowers; Complete AR-15 Uppers; Stripped AR-15 Lowers; AR-10 Parts. 458 SOCOM is more advanced than the Cross Machine Tool Billet Upper Receiver in that it has more features such as shell deflector and M4 feed ramps. Customize your 458 SOCOM Complete Upper with an optic, muzzle device, rail, bolt carrier group, magazine, or charging handle from our matched selection. No forward assist may not appeal to everyone. With BCA unbeatable prices alot is out of stock. The .458 SOCOM came about from Task Force Rangers experience in Mogadishu during Operation Gothic Serpent (the same battle the spawned the film Black Hawk Down.). If you have a mil-spec AR-15 lower, this upper will be a perfect fit. I have to try some other ammo. They can be a little bit pricey, though. It is smart to get an upper receiver that is compatible with AR-15 parts like AR lower receivers for better performance and shooting experience. It may take time and effort, but if you like building stuff, then youll enjoy building this receiver as it is quite versatile. I opted for the full length rail. The 458 SOCOM cartridge offers the practical ballistics of the legendary .45-70 in a modern AR platform rifle and is capable of firing 250 to 600 grain .458 caliber Button rifled. Last two things, then well get out of here: The muzzle brake is good. If this is something you are interested in doing, then this is the upper receiver for you. In summary, if you are custom building an .458 AR and you dont want to break your bank in the process, consider getting the Anderson Manufacturing upper receiver. This stripped upper receiver is forged from 7075 Aluminum and features an expanded ejection port. Like they say good work aint cheap and cheap work aint good. However, its not quite as good as many 2 or 3-port muzzle brakes. Standard; High Capacity. San Tan also made this upper receiver lighter than most billet uppers while reinforcing the areas that see the most action for increased durability. Then I bought a 5.56 nato upper from them and the extractor was broken. They all work together to ensure that the gun is shot, the old cartridge is expelled, and fresh cartridges are removed from their magazine and inserted into the chamber. This.458 SOCOM Stripped Upper Receiver from Anderson Manufacturing is ideal for those who are new to AR-15s. FMJ underwood ammo. Bear Claw spiral flutes. And those components hold up incredibly well. Sucked that the coupon code didnt work. If I bought a .458 so com it would be because they dont make a .459!!! WebEvery 458 SOCOM Upper we sell can be configured to your specifications. 5/8-24 threads. It is also recommended that you wear eye protection and gloves to protect your eyes and skins from getting irritated owing to the fumes of the gun cleaners. Web

The Complete Upper is constructed of billet machined 7075-T6 aluminum with proprietary Extended aluminum hand guard w/ Magpul M-LOK mounting system and integrated upper/hand guard stainless steel anti-rotation pin. Handguard is super comfortable and offers decent utility. If you are new to AR-15s, follow this guide to help you figure out what .458 Upper Receiver to buy and how to go about purchasing the right one. Slip 2000 Gun Lube Vs Slip 2000 EWL Gun Lube, It does not come with a charging handle or dust cove, Wide ejection port to properly extract large .458 rounds, Not ideal for those who are not interested in custom building an AR upper receiver, Enlarged ejection port to properly eject larger .458 rounds, Features M4 feed ramps, shell deflector, and other features, Compatible with AR lower receiver and other standard components, Not ideal for those who are looking for an already assembled upper receiver. Its more common to use a carbine length barrel with the SOCOM due to its oversize diameter and lower velocity. Quick view. It is compatible with Mil-Spec parts and aftermarket rail systems and handguards. Complete uppers are guaranteed to save you time and money and will work well for most scenarios. Building your first AR-15 can be fun, but it also takes time and effort. Angular cuts improve durability and rigidity. And we gathered them all here in one place for you. All in all, this upper receiver is well-made, durable and it is designed for optimal performance. Ready to fire on your lower receiver. PRO2A 8.5" 458 Socom 1/14 Pistol Length Melonite M-LOK AR-15 Upper, PRO2A 8.5" 458 Socom 1/14 Pistol Length Melonite M-LOK AR-15 Upper with Flash Can, PRO2A 10.5" 458 Socom 1/14 Pistol Length Melonite M-LOK AR-15 Upper, PRO2A 10.5" 458 Socom 1/14 Pistol Length Melonite M-LOK AR-15 Upper with Flash Can, PRO2A 18" 458 Socom 1/14 Carbine Length Melonite M-LOK AR-15 Upper. >11 Facts Proving Hunters Help Wildlife Thrive, >Vortex Strike Eagle 1-6x24mm vs. Primary Arms 1-6x24mm, >The Right Way To Mount A Scope Every Time, >Three Common Pistol Problems & How To Correct Them, >Everything You Need to Know About Flying with Firearms, >7 Essential Steps to Choosing the Right Rifle Scope, >7 Self-Defense Tactics Every Citizen Must Know, >Interacting With Police When Youre Armed. Its not quite a low profile brass deflector. .450 Bushmaster or .458 Socom. The muzzle brake delivers decent recoil reduction. Web

The Complete Upper is constructed of billet machined 7075-T6 aluminum with proprietary Extended aluminum hand guard w/ Magpul M-LOK mounting system and integrated upper/hand guard stainless steel anti-rotation pin. Theyve raised the price to $300.00. Choose Options. Butit lasts a really long time. However, it doesnt have a ton of bells and whistles. Butit still works just fine for keeping brass out of your face. However, beyond the type of material used, the type of construction process can also affect the cost and durability. The 16-inch barrel includes a 15-inch M-Lok handguard and a Picatinny rail, and the barrel is complete with a flash hider already installed. The firing pin is charged when you draw the charging handle back to release a cartridge from the magazine. The .458 SOCOM feeds flawlessly from many standard unmodified 5.56 AR magazines. ThePanzer Muzzle Brakeis actually a decent muzzle brake. WebThis model is +P rated and has a snag-free enclosed hammer. It was developed as a very powerful and accurate, short to medium range round that provided a significant firepower increase for US soldiers. upper has a lot to offer. It a great choice if you are new to AR-15s, and it comes with an attractive price tag. .458 Socom Complete Upper under 200 Video unavailable This video is unavailable Watch on *** Update Code 704tactical DOES WORK NOW ******** BCA AR-15 This is handy because, even though M-LOK is popular, a lot of lights and forend attachment still ship with picatinny mounts. Products are selected by our editors. This is one high quality upper assembly, assembled from US made parts. You can make the gas block hit the inside of the handguard with ease. 458 SOCOM (STAINLESS STEEL) $24.80 (1 review) Write a Review SKU: 1058041175CPD Quantity: DURAMAG SS 458 SOCOM Love the AR big bores but your magazine cant handle the sheer power or feed these rounds the right way? Furthermore, this upper receiver is compatible with AR-15 parts and it accepts standard 5.56 bolt carriers, charging handles, and barrel nuts. Itll work great at stopping Wild Boar and larger bucks but youre guaranteed to destroy the integrity of any animal less than 100lbs. Choose FREE Shipping Option at Checkout for orders over $250. But, I am loving this upper! Durable and lightweight, its an excellent option for more experienced gun builders. With any firearm, you want to be confident with the parts youre using. Web458 DEDICATED MILSPEC UPPER: US made; MILSPEC; T6061 Aluminum; Enlarged ejection port to accommodate the 458 case; mil-a-8625 type iii anodizing; will match up with any