Conversion Kits

If you're looking to build something on an AR15 platform and want the absolute best semiautomatic tactical rifle upper, consider building around this POF-USA Minuteman upper. The Patriot Ordnance Factory Minuteman provides the end user with some of the...

Requires low profile gas block, Two mil-spec 1913 picatinny rail sections

The CMMG ZEROED extended bolt catch features dual oversized extended paddles with a tactile machined surface. Steel construction with a durable finish makes for a robustly built component with excellent ergonomics for confident bolt catch operation every...

The MX-1 redefines conversion kits for Glocks, delivering an all-in-one chassis compatible with 70+ Glock models. Designed for versatility, durability, and enhanced performance, this compact system transforms Glocks into a precision-driven platform for...

Excellent choice for short rifles in the 10"-16" range. The 9.0's length stops just past a carbine-length gas block, providing true free-float. The two-pin proprietary barrel nut system with its locking anti-slip plate, sets LaRue handguards apart from...

The Barrett Mradelr Bar Conversion Kit is a top-tier upgrade for firearm enthusiasts seeking enhanced performance in .416 Barrett caliber. This premium conversion kit features a durable black Cerakote barrel finish, ensuring superior protection against...

Requires low profile gas block

Dont build a .22 LR that looks like an AR, build an AR that happens to be chambered in .22 LR. This BANSHEE upper group is built on the Mk4 platform, and is designed to work with any standard AR15 lower group and use .22 AR Conversion Mags.

The Aero Precision Minimal Optical Deflection (MOD) 4 handguard seamlessly blends robust construction with an ergonomic form factor, ensuring no compromises between the two. Machined from 6061-T6 aluminum, the handguard is engineered with a focus on...

The TacFire Rifle SS-RK308-LPK-20BN Kit contains .308 Winchester 20" barrel/nitride; NIB extension rifle length gas tube with pin/steel; .308 low profile slim MLOK handguard 15"; .308 DPMS low profile stripped upper receiver (GEN.3), AR-10/.308 charging...

Designed to provide consistent function from the AR-15 platform, 22 ARC delivers 22-250 levels of ballistic performance in the Mk4 (AR15) lineup.

The M5 .308 Stripped Upper Receiver is the ideal upper for your big bore rifle build. Forged from 7075- T6 aluminum, this stripped upper is precision machined to accept standard .308 components. It features M4 Feedramps, .2795 takedown pin holes (DPMS...

Includes: Stern Defense 15 inch M-LOK rail(Barrel nut, bolts etc.) Stern Defense 16.1 inch 9mm barrel. SCB 9 COMPENSATOR BREAK. Stern Defense assembled upper receiver with dust cover and forward assist. Stern Defense SD BU9 Glock cut bolt. SD CH1...

This Takedown Pin set features a divot and a slightly longer length to aid in removal.

RipBrace is a revolutionary, retractable pistol brace engineered for lightning-fast deployment to your personal setting. With CMMG's Fastback Technology, you simply pull straight back to extend the brace. The P3 Technology (Personal Position Preset)...

A great slide is the foundation of your build, that's why Rival Arms' Slide Completion Kit uses high quality components designed to provide accuracy and consistency. The slide completion kit includes every part needed to assemble the internal workings of...

Chambered in 5.56, this pistol upper is completely built and ready to be put on a lower. Includes a Bolt Carry Group.

The Spike's Tactical ST-15 Enhanced upper line-up is designed as a fully Mil-spec compliant upper series for law enforcement. This same level of quality and performance is now available to everyone, all at a price range that is affordable to shooters of...

Personal defense calibers have become a big thing in the last few years, and if youre looking for PDW ballistics and the classic style and balance of a carbine then youre in luck.

The Tacfire SS-RK45ACP-LPK rifle build kit contains 45 ACP 16" barrel/nitride; birdcage flash hider w/crush washer; 15" slim MLOK free float handguard; AR15 5.56/.223/.300AAC stripped billet upper receiver w/M4 feed ramps, 45 ACP-BCG; AR-15/.556...

Chambered in 45 ACP, this rifle upper is completely built and ready to be put on a lower. Includes a Bolt Carrier Group.

ODIN UPPER RECEIVER BILLET BLKAR-15 9MM NO FOWARD ASSISTFEATURES:-For AR15 NO forward assist - slick side-Low profile brass deflector-9mm

GUNTEC AR15 STRIPPED BILLETUPPER RECEIVER BLACKFEATURES:-.223/5.56 Cal-T6 6061 Billet-1913 Picatinny Rail Flat Top-Manufactured From Solid Block of Billet Aluminum-M4 Feed Ramp-Will Match up w/ any brand lower receiver-Accepts Mil-Spec ejection port door...

ATI OMNI HYBRID AR15 STRIPPEDPOLYMER UPPER RECEIVER FDEFEATURES:Multi-Caliber: 5.56mm, 300BLK, 22LR, 6.8 SPC Material: Polymer w/Insert Metal-reinforced polymer upper receiver Lightweight with durability of a forged aluminum upper Metal insert to...

ALEXANDER UPPER RECEIVER AR15PISTOL 50 BEOWULF 12" TB BLK

AERO PRECISION M4E1T COMPLETEUPPER 11.5" 5.56 BARREL

NEW FRONTIER C10 UPPER RECVRAR10 STRIPPED BILLET BLACK

AERO PRECISION M4E1T COMPLETEUPPER 16" RM15 5.56/223

ATI OMNI HYBRID AR15 STRIPPEDPOLYMER UPPER RECEIVER GREYFEATURES:Multi-Caliber: 5.56mm, 300BLK, 22LR, 6.8 SPC Material: Polymer w/Insert Metal-reinforced polymer upper receiver Lightweight with durability of a forged aluminum upper Metal insert to...

Modernize the classic MP5 platform with the UTG PRO Monolithic Handguard, combining optics real estate and handguard, all in one. Patented and easy-to-install locking interface, extra ergonomics to prevent hot spots and snag points, topped with an...

Bringing the innovative UTG PRO Monolithic Handguard for MP5 to the MP5K, combining optics real estate and handguard, all in one. Patented and easy-to-install locking interface, extra ergonomics to prevent hot spots and snag points, topped with an...

NEW FRONTIER PISTOL CAL UPPERGEN 2 STRIPPED BILLET BLACK.