This upper is 5.56mm/.223 Remington. This barrel has a 1:8 twist to better accommodate hunting-weight bullets.
Carbine length gas system
Upper includes installed forward assist and dust cover
17" Keymod rail
1/2x28 Black Flash Can flash hider
NO Bolt Carrier Group or Charging Handle
Made in USA
I say again: MADE IN USA!!!
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All prices are in USD.