
SPECIFICATIONS:
*20" HBAR Profile
*5.56 NATO
*1x9 Twist for 5.56 NATO
*4140 Steel
*Salt Bath Nitride Chamber, Bore, & Finish
*Rifle Length Gas System on 20" Barrels
*A4 Barrel Extension (8620 Steel)
*Index Pin Installed TDC
*Threaded Muzzle Crown
*Threaded 1/2-28 for 5.56 NATO
*Labeled Between Gas Block and Muzzle with Caliber & Twist
*Weight: 2.874 lbs.