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We're big fans of the M4 platform and that includes the close ancestors to the M4 like the 727 and XM4. This upper features a 14.5" Chrome-Lined 5.56 Carbine-Length Barrel w/ Pinned FSB and Carbine Handguards. Choose COLT SOCOM or LMT M4 barrel. Upper...

Limited Edition These are the same BCGs as our Premium Chrome, but we went one step farther. Instead of the factory staking that most of our BCGs receive, we asked our fellow San Antonio AR-tist (did we just coin that term?) Phillip Kimm of Bexar Arms to...

Another GREAT Value in a Mil-Spec Trigger. Smooth, Consistent and Reliable.   If you like a traditional AR trigger, then you're going to love this one. We think these are the best of the breed, among the finest entry-level triggers available. These...

Limited Run w/ OCKS Carrier Key Screws Nitride BCGs without OCKS can be found here Microbest is one of the finest manufacturers of mil-spec bolt carrier groups for the military and small arms manufacturers. These are individually High Pressure Tested and...

GUARDIAN OPTIC MOUNT & GUARD  The GUARDIAN is the strongest optic mounting system on the market. TRU-SEAL eliminates the need for an added sealing plate. 0-rings on the mounting screws hold the plate watertight to the slide, sealing out...

***In Stock***   The Ultimate Hard-Use 5.56 Bolt Carrier Group: These aren't designed to be pretty. They're not meant to compete with the gorgeous museum-quality $200+ units that other well-respected manufacturers are putting out. But this is not...

The oil you don't have will do you no good-- so keep it handy. Introducing our premium-grade arf-o-matic Machine Oil, a super-convenient and compact 10mL (1/3 oz.) bottle of high-performance lubricant specially optimized for firearms and related...

A phenomenal foundation for a battle rifle, this Aero Precision M4E1 Complete Upper features a 14.5" barrel and a 12" Atlas R-One handguard. This complete upper does not include the bolt carrier group (which can be found here) or charging handle (here)...

The Geissele Automatics Right-Handed Posi-Lock Safety Selector features a positive and tactile design that snaps into position for faster weapon manipulation. It is machined from 400 series stainless steel and black anodized. It features deep serrations...

Sourced from one of the best OEM AR small parts manufacturers in the world, Schmid Tool. Genuinely mil-spec, you can rely on the same small parts as the military. Includes: Mil-Spec Small Parts 2x Takedown/Pivot Pin Detents 2x Hammer/Trigger Pins 1x...

Radian Weapons, RAMJET Fluted Barrel with AFTERBURNER Muzzle Brake, 9MM, Black DLC Finish, INTRA-LOK Mounting System, Fits Glock 19 (Choose proper generation) 44% recoil reduction in combination (115g ammunition) AFTERBURNER: Hardened 17-4 stainless...

The M5 .308 Assembled Upper Receiver comes with both the port door and forward assist hardware preinstalled. Forged from 7075-T6 aluminum, this assembled upper is precision machined to accept standard .308 components and is the perfect upper for your big...