AR-15 300 Blackout Rifle Build Kits
“300 Blackout Rifle Kit 10″ Quadrail 1 x 8 Upper Assembled WITH 80% Lower” has been added to your cart.
AR-15 300 Blackout Rifle Build Kits
Complete 300 Blackout AR15 Rifle Kits - 300 AAC Blackout - with/without 80% Lower Receiver.
The 300 Blackout cartridge, also known as 7.62x35, uses a standard AR-15 magazine in the AR15 platform. Additionally, it was developed by Advanced Armament Corporation to be used in the M4 Rifle.
The Rifle Kits contain all the parts needed to Finish your AR-15 Rifle except the Magazine or Sights. Upper receivers are 7075 T-6 Aluminum Alloy.
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