GM COMPLETE RIFLE UPPER RECEIVERS
Turn your Ar-15 Lower receiver into a complete tactical rifle with Gorilla Machining Rifle kit. Our rifle kits contain everything you need to complete your AR 15. We have plenty of different configurations of AR-15 rifle kits to choose from, so choose your barrel length, barrel profile, gas system, handguard type, furniture, and much more in a variety of colors. All GM branded components are American-made and feature our full lifetime warranty.