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.
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GORILLA MACHINING AR-9 9MM LUGER UPPER RECEIVER
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GORILLA MACHINING AR-15 .224 VALKYRIE UPPER RECEIVER
For a truly custom build, pick up a upper receiver from GORILLA MFG . We carry top brands, manufactured with high quality materials and process, ensuring the best quality parts for your AR-15 ,M4, M16 AND AR-308 build. These upper receivers are manufactured in house with 7075 aluminum aircraft material and mil-spec components .
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GORILLA MACHINING AR-15 5.56/.223 MARKSMAN UPPER RECEIVER
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GORILLA MACHINING AR-15 300 BLK OUT AAC UPPER RECEIVER