TacFire BU-300-16 Rifle Upper Assembly 300 Blackout Caliber 16" Black Nitride Barrel, Black Anodized 7075-T6 Aluminum Receiver & M-LOK Handguard for AR-Platform Includes Bolt Carrier Group
http://www.tandktactical.com/shop/729205501050-tacfire-bu-300-16-rifle-upper-assembly-300-blackout-caliber-16-black-nitride-barrel-black-anodized-7075-t6-aluminum-receiver-m-lok-handguard-for-ar-platform-includes-bolt-carrier-group-31297
http://www.tandktactical.com/web/image/product.template/31297/image_1920?unique=0cd9681
Chambered in 300 Blackout, this rifle upper is completely built and ready to be put on a lower. Includes a Bolt Carrier Group.
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