Rock River Arms 16 inch air-gauged, cryo-treated, stainless steel, H-Bar barrel chambered in .223 Wylde, with a 1:8 twist, midlength gas system, .750 diameter gas block journal, and a non-threaded target crown muzzle.

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.

Ballistic Advantage, Performance Series, Hanson Profile Barrel, 556NATO, 13.7", Black Finish, Lo Pro Gas Block included. 1:7 twist, carbine length gas system, .750 journal and a 1/2x28 threaded muzzle. Machined from 4150 Chrome Moly Vanadium steel with a QPQ Corrosion Resistant Finish and QPQ coated M4 feed ramp extension.

POF-USA Barrel - 5.56 NATO - 16.5" - Midlength - E2 TECH

FEATURES:
-4150 Chrome Vanadium Steel
-16.5" barrel
-5.56 match chamber
-1:8 twist
-.750 Gas Block Diameter
-Nitride heat treated
-Mid-length configuration
-M4 feed ramps
-E² extraction technology
-5R rifling

Manufacturer Part # 98842
Type: Barrel Assembly for SCAR 16S
Caliber: 556NATO/223 Remington
Twist: 1:7
Barrel Length: 14"
Accessories: Front Sight Assembly, Gas Block and Regulator, Gas Piston, and Flash Hider