Upper Parts

Daniel Defense M4A1 RIS ll Rail - Black  The Daniel Defense Rail Interface System (RIS II) was designed at the request of the United States Special Operations Command (SOCOM) for the SOPMOD II program. SOCOM had a specific requirement for a free...

Luth-AR 5.56 18" Mk12 Barrel Made from 4140 Chrome Moly, 1-9 RH twist and an M4 style feed ramp. Specs & Features: 5.56 4140 Chrome Moly Threaded Barrel — Thread Pitch 1/2 x 28 Gas Block Diameter .750 Gas Tube Length — Rifle 1-9...

Comstock Armory Knurled Thread Protector - Plan-B Compatible Protect your threads without adding bulk. The Comstock Armory Thread Protector is a compact, high-strength solution designed specifically for Plan-B compatible muzzle devices. Whether you're...

Comstock Armory 4 Prong Flash Hider 5/8x24 - Plan B Suppressor Mount The Comstock Armory 4-Prong Flash Hider is purpose-built for shooters who demand stealth, suppressor compatibility, and refined performance. Designed to work seamlessly with ...

Comstock Armory 4 Prong Flash Hider 1/2X28 - Plan B Suppressor Mount Engineered for peak performance and tactical precision, the Comstock Armory 4-Prong Flash Hider is built to deliver unmatched flash suppression while eliminating the annoying...

KAK - K-SPEC Enhanced AR15 Bolt 5.56/ 300 Blackout Dual Ejector Full Chrome The K-SPEC dual ejector system uses mil-spec ejectors and springs that require no proprietary parts.  Ejector holes are centered on the lugs to avoid any reduction in...

KAK - K-SPEC Enhanced AR15 Bolt 5.56/ 300 Blackout Dual Ejector Phosphate The K-SPEC dual ejector system uses mil-spec ejectors and springs that require no proprietary parts.  Ejector holes are centered on the lugs to avoid any reduction in...

Rosco Manufacturing K9 Barrel 16" 5.56 Intermediate Gas The K9 16" features an intermediate length gas system with an optimized gas port to run reliably suppressed and/or unsuppressed. The K9 continuous taper is the most effective profile to dissipate...

AAC BLACKOUT® SCAR-H 51T Flash Hider M.I.T.E.R. Mountt - 5/8x24 This AAC Blackout Flash Hider is an extremely efficient design that effectively eliminates muzzle flash, even on short barrels. The open-end, 3-prong design of the Blackout is...

B5 Systems CAR-15 Handguard - ODG The CAR15 Handguard pays homage to classic firearm parts and accessories. The venerable design features a lightweight slim profile that stays true to the original 6-hole design. A single heat shield and accurate detail...

Rearden RPB – Heat Treat 5/8x24 - Square These fit the plan B type mounts. Always use an alignment rod to ensure that the entire system is set up correctly. Make sure all surfaces are cleaned and the muzzle device has been torqued and Rockset to...

AR Upper Receiver with Forward Assist and Ejection Port Cover Assembly Installed, Forged 7075 Aluminum, T-Marked, Interior is Dry Film Lube