Beat the Rush. Lock In Savings | Shop Early

Beat the Rush. Lock In Savings | Shop Early

Black AR-15 Build Kits and Assemblies

150 products

CMMG AR-15 Barrel & BCG Kit – 5″ – 5.7x28mm – Radial Delayed Blowback

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AT3 Tactical A1 Retro AR-15 Lower Build Kit

A1 Retro AR-15 Lower Build Kit

STNGR 14.5" 5.56 w/ 15" HWKXL AR-15 JNL Ready Build Kit

STNGR 14.5″ 5.56 w/ 15″ HWKXL AR-15 JNL Ready Build Kit

AT3 AR-15 Gas Management BCG & CH Kit - Radian Raptor SD / K-SPEC 5.56 Downward Vent BCG

AR-15 Gas Management BCG & CH Kit – Radian Raptor SD / K-SPEC 5.56 Downward Vent BCG

AT3 AR-15 Gas Management BCG & CH Kit - SilencerCo GDCH / K-SPEC 5.56 Downward Vent BCG

AR-15 Gas Management BCG & CH Kit – SilencerCo GDCH / K-SPEC 5.56 Downward Vent BCG

AT3 AR-15 Gas Management BCG & CH Kit - Breek Sledgehammer / K-SPEC 5.56 Downward Vent BCG

AR-15 Gas Management BCG & CH Kit – Breek Sledgehammer / K-SPEC 5.56 Downward Vent BCG

AT3 Tactical MIL-SPEC AR-15 Lower Build Kit - No Stock

AT3 Tactical MIL-SPEC AR-15 Lower Build Kit – No Stock

AT3 Tactical Ambi AR-15 Lower Build Kit - No Stock

AT3 Tactical Ambi AR-15 Lower Build Kit – No Stock

AT3 Tactical AR-15 Lower Build Kit - Hogue Furniture

AR-15 Lower Build Kit – Hogue Furniture

Open Box Return -STNGR 11.5 Inch 5.56 Complete Assembled Upper w/ 10 Inch RPTR® Handguard, BCG & CH – Black

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Open Box Return -STNGR 12.5 Inch 5.56 Complete Assembled Upper w/ 13.5 Inch RPTR® Handguard, BCG & CH – Od-green-2

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AT3 Tactical Minimalist AR-15 Lower Build Kit

AT3 Tactical Minimalist AR-15 Lower Build Kit

AT3 Tactical AR-15 Lower Build Kit - Magpul MOE Carbine Furniture

AR-15 Lower Build Kit – Magpul MOE Carbine Furniture

AT3 Tactical CAR-15 Retro AR-15 Lower Build Kit

CAR-15 Retro AR-15 Lower Build Kit

AT3™ 9MM 16″ Assembled Upper – 2A Basics ASAL Handguard – No BCG/Charging Handle - w/Sylvan Magazine Block

AT3™ 9MM 16″ Assembled Upper – 2A Basics ASAL Handguard – No BCG/Charging Handle – w/Sylvan Magazine Block

Spike's Tactical AR-15 Pistol Buffer Tube Assembly

Spike’s Tactical AR-15 Pistol Buffer Tube Assembly

AT3 Barrel Builder Kit – 10.5″ .300 Blackout Medium Profile Pistol Length Barrel, Gas Block, Gas Tube & BCG

AT3 Barrel Builder Kit – 10.5″ .300 Blackout Medium Profile Pistol Length Barrel, Gas Block & Gas Tube

AT3 AR-15 Left Gas Management BCG & CH Kit - Breek Arms Sledgehammer OMNI-Buster / K-SPEC 5.56 Downward Vent BCG

AR-15 Left Gas Management BCG & CH Kit – Breek Arms Sledgehammer OMNI-Buster / K-SPEC 5.56 Downward Vent BCG

AT3 Tactical MIL-SPEC AR-15 Lower Build Kit

AT3 Tactical MIL-SPEC AR-15 Lower Build Kit

AT3 Tactical MIL-SPEC AR-15 Lower Build Kit w/Brace

AT3 Tactical MIL-SPEC AR-15 Lower Build Kit w/Brace

AT3 Tactical AR-15 Lower Build Kit - WOOX Furniture

AR-15 Lower Build Kit – WOOX Furniture

AT3 Tactical AR-15 Lower Build Kit - UTG Furniture

AT3 Tactical AR-15 Lower Build Kit – UTG Furniture

AT3 Tactical AR-15 Lower Build Kit - Strike Industries Furniture

AR-15 Lower Build Kit – Strike Industries Furniture