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Rock River Arms X1 Mid Length Upper

$665.00
SKU: 
5142

The Rock River Arms X1 Mid Length Upper features a Rock River Arms 18 inch, cryo treated, stainless steel, fluted barrel chambered in .223 Wylde with a 1:8 twist, mid-length gas system and a 1/2-28 threaded muzzle.  Built on a Rock River Arms forged A4 flattop receiver with a lightweight free float, 15 inch extended, M-LOK compatible rail, low profile gas block, and a Rock River Arms Beast muzzle brake.

The .223 Wylde chamber was designed as a match chambering for semi-automatic rifles. It will accomodate both .223 Rem and 5.56mm NATO ammunition. It is relieved in the case body to aid in extraction and features a shorter throat for improved accuracy.

Complete with AR-15 bolt carrier assembly and forged charging handle.

FACTORY BUILT BY ROCK RIVER ARMS INC.