Shop by Caliber | AR-15 & LR-308/AR-10 Upper Build Kits
- 12.7x42 | AR-15 Upper Build Kits
- 5.56 NATO | AR-15 Upper Build Kit
- .223 Wylde | AR-15 Upper Build Kits
- .300 Blackout | AR-15 Upper Build Kits
- 9mm | AR-15 Upper Build Kits
- 7.62x39 | AR-15 Upper Build Kits
- .458 SOCOM | AR-15 Upper Build Kits
- .350 Legend | AR-15 Upper Build Kits
In Stock