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Top Sellers

Gorilla Machining AR-15 .223/5.56 , 7.62x39 , 300AAC , 9MM , 6.5 Grendel , 350 Legend Complete Lower Parts Assembly kit
Gorilla Machining AR-15 .223/5.56 , 7.62x39 , 300AAC , 9MM , 6.5 Grendel , 350 Legend Complete Lower Parts Assembly kit
$33.99
(69)
Gorilla Machining AR-15 M4A4 Anchor Harvey Stripped Upper Receiver RAW
Gorilla Machining AR-15 M4A4 Anchor Harvey Stripped Upper Receiver RAW
$30.99
(48)
Gorilla Machining AR-15 M4A4  Stripped Upper Receiver Blemished
Gorilla Machining AR-15 M4A4 Stripped Upper Receiver Blemished
$27.99
(183)

New Releases

GORILLA MACHINING AR-15 | 5.56/223 Dual side Charging Upper | AR-15 Bolt Carrier group
GORILLA MACHINING AR-15 | 5.56/223 Dual side Charging Upper | AR-15 Bolt Carrier group
$329.99
(0)
TEXAS ENTERPRISE AR | Low Profile Gas Block .875 (QPQ) | Made in USA
TEXAS ENTERPRISE AR | Low Profile Gas Block .875 (QPQ) | Made in USA
$12.99
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MATRIX ARMS | MX19 Delta 2.0 Slide GLOCK® 19 | Compatible Trijicon RMR® | *NEW PRODUCT* COLOR: TAN DLC
MATRIX ARMS | MX19 Delta 2.0 Slide GLOCK® 19 | Compatible Trijicon RMR® | *NEW PRODUCT* COLOR: TAN DLC
$164.99
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  2. GM COMPLETE RIFLE UPPER RECEIVERS

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.
GM COMPLETE RIFLE UPPER RECEIVERS subcategories
  • GORILLA MACHINING AR-9 9MM LUGER UPPER RECEIVER  GORILLA MACHINING AR-9 9MM LUGER UPPER RECEIVER
  • GORILLA MACHINING AR-15 .224  VALKYRIE UPPER RECEIVER GORILLA MACHINING AR-15 .224 VALKYRIE UPPER RECEIVER
  • GORILLA MACHINING AR-15 5.56/.223 MARKSMAN UPPER RECEIVER GORILLA MACHINING AR-15 5.56/.223 MARKSMAN UPPER RECEIVER
  • GORILLA MACHINING AR-15 300 BLK OUT AAC UPPER RECEIVER  GORILLA MACHINING AR-15 300 BLK OUT AAC UPPER RECEIVER
  • GORILLA MACHINING AR-15 7.62X39 MIKHAIL UPPER RECEIVER GORILLA MACHINING AR-15 7.62X39 MIKHAIL UPPER RECEIVER
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