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Rock River Arms 24 inch - Varmint A4 - 1/8 Twist - Upper


The Rock River Arms 24 inch - Varmint A4 Upper features a Rock River Arms 24 inch stainless steel, air-gauged, cryogenically treated, bull barrel (barrel diameter of 1.050 under handguard, .920 diameter gas block journal) chambered in .223 Wylde, with a 1:8 twist, rifle-length gas system and a target crowned muzzle.  Built on a Rock River Arms flat top receiver with an RRA TRO-STD handguard (14.5 inches long) and a low profile gas block.

Included: 1 bottom rail, 2 2" short rails

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.

Excellent for 55-77 grain bullets.

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