Then noticed they had a ambi stainless option and asked them … Building an AR platform rifle with the .458 SOCOM upper is not a particularly easy task when compared to putting together your run-of-the-mill 5.56×45 AR-15. Young is known as one of the best sources for BCGs anywhere. A complete build kit… Rifling 1:22, Right Hand, 6-groove, Precision Button Rifling. SKU: 458-CAU-RH Category: 458 SOCOM Barrels, Uppers, & Parts Description As of January 2021 – Lead time to ship your complete custom upper, built with your selected options, is … – Enlarged Ejection Port for 458 SOCOM ... Use of the Standard Cam Pin will cause the Bolt Carrier Group to lock up in the G4 Upper Receiver and be VERY difficult to remove and possibly damage the Upper Receiver. Muzzle Threads – 11 or 16-inch x 24. There are fewer available components from the aftermarket resulting from the caliber’s lesser popularity. After deliberations and experimentation, the .458 SOCOM came to be in the early 2000’s. – Uses all Left Handed Mil-Spec and most Left Handed Custom Bolt Carriers without modification. This is a complete, AR-15.458 Socom Complete Upper Receiver with a MLOK handguard that is fully assembled and will perform without hesitation, consistently placing rounds where you aim. I made a little video to show how one can enlarge the ejection port of the AR-15 receiver to accept a large caliber case for extraction. Quick view. The A3 upper will attach to virtually any standard AR-15 lower receiver and comes complete with charging handle, forward assist, ejection port cover, A2 flash hider, bolt and bolt carrier assembly . Barrel: 16" 4150 Parkerized Heavy Barrel Twist: 1:14 Caliber: 458 SOCOM 12" Free Float Handguard ACME AR-15 Upper Receiver. Coming in at more than twice the diameter of the 5.56mm round, the .458 SOCOM has the potential to create massive wound channels. This .458 Socom Complete Upper Receiver MLOK is built by J-5 Tactical using only quality American made parts. Sale. ... it is recommended to blend the barrel feed ramp into the upper receiver after barrel installation, as shown. Tool Craft 458 / 450 Mil-Spec Bolt Carrier Group Nitride Rock River Arms, Inc. offers a complete line of American made, custom built AR15 style rifles. $649.99 $599.99. Home / 458 SOCOM Barrels, Uppers, & Parts / Upper Receiver – Right Handed. Mueller Industries Upper Receiver Fully MIL-STD M4A4.458 Socom Upper Receiver; Mil-Std 1913 Rail for mounting optics and accessories; Machined for use with barrels that use an M4 barrel extension; Hard Coat Anodized per Mil-A-8625F, Type III, Class2; Dry Film Lube on interior bore per Mil-Specs Related products. So, there go our top-rated upper receivers for your 458 SOCOM. One of the more interesting—and powerful—upgrades for the standard AR-15 rifle is an upper receiver in .458 SOCOM. (Warning: DO NOT Modify the steel locking lugs on barrel extension.) Converting your AR to a 458 SOCOM requires an upper receiver with a larger ejection port, a 458 SOCOM barrel, and 458 SOCOM bolt carrier group. 458 SOCOM AR15 Uppers for Sale at Joe Bob Outfitters! 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 bullets in a lightweight, controllable package. The Wilson Combat .458 SOCOM build kit includes. I was in the process of building a 458 socom upper when I came across the Atheris site. $549.99 $509.99. Product Description. Upper Receiver – Right Handed $ 135.00. This AR-STONER™ carbine length upper features a 458 SOCOM bolt carrier group, parkerized finish, low profile gas block, and a heavy profile barrel. For hunting medium to large game, bullets in the 250 grain– 400 grain weight range possess devastating killing power. It is a 458 Socom bolt carrier group with a genuine 458 Socom bolt assembly. The .458 SOCOM (11.63×40mm) is a moderately large round designed for a specialized upper receiver that can be mounted on any AR-15 pattern lower receiver. Loads for the .458 SOCOM run the gamut from 250- to 600-grain projectiles, with an average 350-grain bullet producing over 2,496 foot-pounds of energy (fpe). The Anderson Manufacturing .458 SOCOM Upper Receiver gives AR-15 builders who are looking to produce their big-bore .458 model a ready-made upper that is designed to handle the increased dimensions of the round. Save big on a new 458 socom upper receiver. This 40mm long case was designed to be fitted with the much larger .458 diameter bullets that produce dramatically more force than the 5.56 rounds but still able to be used with an AR magazine and a specialized .458 SOCOM upper receiver. All J-5 Tactical .458 Socom Complete Upper Receiversare tested prior to shipping. Riding inside the CMT upper receiver is a right side charging National Match Bolt Carrier and .458 SOCOM bolt from Young Manufacturing. From the Panzer muzzle brake to the hybrid rail system Radical Firearms went the extra mile to make their product look unique. The Radical Firearms .458 SOCOM looks like a high-end upper receiver. The 300-grain (19 g) round offers a supersonic muzzle velocity of 1,900 ft/s (580 m/s) and 2,405 ft⋅lbf (3,261 … Home > AR15 & AR10 Upper Receiver Assemblies > 458 SOCOM AR15 Upper Sort By: Price: Low to High Price: High to Low Most Popular Title Manufacturer Newest Oldest Availability 30 per page 60 per page 120 per page 180 per page 300 per page Page of 1 Accu-Tac Flash Hider. The upper and lower receivers are CNC-machined from aircraft-grade 7075-T6 aluminum forgings, the former being an A4 configuration with a flattop Picatinny rail. ARCHIVED; Posted: 1/9/2011 1:44:38 PM EST I just aquired a .458 socom upper at the local gun show today. .458 SOCOM Complete Assembled Upper – Left Handed $ 920.00 – $ 1,090.00 Select options.458 SOCOM 8″ Micro Complete Assembled Upper – Left Handed $ 969.00 – $ 1,069.00 Select options.458 SOCOM Complete Assembled Upper – Right Hand Blue Print for Upper Receiver Modification .458 SOCOM Ejection Port Modification Print "1.55-1.60" inside rail height required to clear .875 SLR gas block . 458 SOCOM Conversion Kit. The best price for 458 socom upper receiver for sale online. Unlike some lower end .458 SOCOM bolts on the market, Young’s isn’t simply a milled out thin walled 5.56 bolt just waiting to crack. Barrel Chambered in 6.8 SPC; 6.8 SPC Bolt; 6.8 SPC Magazine; Muzzle Break; 22LR Conversion. 22LR Bolt Carrier Group; 22LR Magazine; 9mm Conversion. However, this upper comes with a price. [ARCHIVED THREAD] - Modifications to use .458 socom upper on 5.56 lower?? Are you looking to use a 458 SOCOM upper receiver for your AR-15? *It is HIGHLY recommended to run this upper with a D&H Tactical 458 Socom Magazine for zero feed issues and our 458 bolt carrier group. That being said, here are some of the things that you should consider when choosing the perfect 458 SOCOM upper. .458 Socom. Sort By: Price: Low to High Price: High to Low Most Popular Title Manufacturer Newest Oldest Availability 120 … The controls are standard AR-15 fare, beyond an indicator notch visible on the right side of the selector lever and the “.458 SOCOM” markings above the ejection port with dust cover. Choose Options. An NP3 coated complete Bolt Carrier Assembly. AR15 Complete Upper Assembly – 16 Inch / .458 SOCOM / 1:14 / M-LOK / 160012 16” Heavy Barrel 4150 Chrome Moly Parkerized Finish 1:14 Twist 15” Split M-LOK Rail .458 SOCOM Carbine Length Gas System M4 Flat-Top Billet Right Side Charging Upper Receiver LS2 Flash Hider - [READ MORE BELOW] Compare prices from more than 30+ gun stores. As .458 SOCOM was designed for a complete burn in short barrels and shorter is handier — not to mention I knew there would be 10 inches of suppressor attached on this AR platform rifle — this upper was always destined for an SBR or pistol lower. bolt – made for the 458 socom from 4340 steel, phosphate coasted, This is over 1,100 fpe more than a standard 5.56mm NATO round. Finding a good upper is all about understanding the requirements of your rifle and your preferences. Straight Gas Tube. Arm or Ally enables you to experience the thrill of building, owning and shooting a big bore lead sled at an affordable price! Adjustable Gas Block. That is understandable. We took our .450 Bushmaster and .458 Socom uppers a few steps further and opened our ejection port opening to 0.64in instead of the standard 0.62in and we also opened the upper right side for no cycling issues. BluePrint for Upper Receiver Modification. I was just wondering what all I needed to change out to use it on a normal 5.56 lower. A15-R .458 SOCOM Complete Upper Receiver. 16-inch heavy barrel. To make this a true big bore upper we blend the feed … Cross Machine Tool Co., Inc. – AR-15/M16 458 SOCOM Billet Upper, 2. ar15 upper receiver, 458 socom, 10 1/2" complete (ready for a lower) • upper receiver: m4 • barrel: 10 1/2” stainless steel, 1:14” twist rate, match I didn't realize it at first, but they had 2 fully built upper options, I accidentally purchased the lower end option. Requires an upper modification; Barrel Chambered in .458 SOCOM.458 Socom Bolt; Straight tube gas block; Muzzle Break; 6.8 SPC. A15-M .458 SOCOM Complete Upper. 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