AR-15 Parts

CN5F (Castle Nut, A5, Forward Controls) is an extended version of CNF we've been making since 2018.  CN5F is designed specifically for the superb Vltor A5 system, CN5F is 0.1" longer, and is as long as we can make a castle nut while ensuring...

The BT73 M-LOK® Rail is designed for use with all M-LOK compatible hand guards, forends and buttstocks. It has 3 usable slots for attaching any of our 1913 Picatinny rail mounted Atlas Bipods, Accu-Shot...

The Dead Air Armament KeyMo Flash Hider 5/8x24 RH (DA302) is Dead Air's KeyMo muzzle device for .308/7.62mm and larger calibers with 5/8x24 RH threading. Functions simultaneously as an effective flash hider and the mounting interface for Dead Air...

This slim, low-profile replacement for factory front sight gas blocks is designed to provide clearance for optics and free-float handguards. Included with the gas block are set screws, a gas tube mounting pin, and installation instructions. The Mk 12...

The Proof Research 12.5" .300 Blackout LMT Carbon Fiber Barrel (100523) is a precision drop-in replacement barrel for LMT MRP/MWS quick-change barrel systems chambered in .300 Blackout. The 12.5-inch length is optimized for suppressed and unsuppressed ...

The LMT Defense AR-15 8.25" .300 Blackout MRP-L Barrel (L7BX1B) is LMT's most compact .300 Blackout barrel assembly, designed for ultra-short SBR, AR pistol, and suppressed builds on the LMT MRP-L upper receiver platform. At just 8.25", this barrel is...

The Forward Controls Design HSM Hand Stop M-LOK (HSM) is FCD's compact hand stop for M-LOK compatible handguards, available in Black, FDE, and ODG (Olive Drab Green) colors. The HSM (Hand Stop, M-LOK, Forward Controls) provides a positive indexing point...

The VK Combat Match Bolt offers unyielding combat reliability with the finesse, precision and accuracy of a match prepared part. Specifically designed for the greatest accuracy potential possible without sacrificing reliability in all conditions. This...

The Proof Research 16” .223 Wylde Carbon Fiber AR-15 Barrel (143254) combines the versatility of the .223 Wylde chamber — which accepts both .223 Remington and 5.56 NATO ammunition — with Proof Research’s world-class carbon fiber...

The Proof Research .338 ARC 16" Carbon Fiber Barrel (145609) is one of the first precision carbon fiber barrels available for the .338 ARC (Advanced Rifle Cartridge) — a powerful, medium-bore AR-platform cartridge designed for extended range barrier...

San Tan Tactical Complete lower receiver parts kit for AR-15 are a great addition to your AR15 build. From amateur gun builder to seasoned expert gun smith, this lower parts kit is for you.  Just add your favorite Trigger, AR-15 Lower, Buffer Tube...

 This is a new FCD (Forward Controls Design) Ambidextrous Charging Handle. ACF-L is an AR15/M16 ambidextrous charging handle based on our ACF.  Whereas with the  ACF, we kept the T handle nearly the same length as that of the TDP...