Criterion Barrels AR-15 Service Rifle DCM w/ Threads Barrel

Designed with service rifle and high power competition in mind, Criterion-manufactured Heavy Service Rifle and NRA Match contour barrels offer extreme accuracy potential for competition shooters. Uniformity of the bore, groove, twist, and a hand lapped finish improve the accuracy potential ofeach match qualitybarrel. The 1-7.7 twist on the 20in Heavy Service Rifle model allows for improved performance with heavier 80 gr. Sierra MatchKings without sacrificing the performance of lighter ammunition. These barrels are offered in both pre-ban (1/228 threaded muzzle) and post-ban (11 target crown) configurations. Chambers are finished, but barrels should be headspaced and installed by a qualified gunsmith. Specifications for Criterion Barrels AR-15 Service Rifle DCM w/ Threads Barrel: Manufacturer: Criterion Barrels Color: White Fabric/Material: CM-CrMoV Cartridge: .223 Remington Barrel Length: 20 in Gas System Length: Rifle Length Threads per Inch: 1/2×28 Barrel Twist Rate: 1-7.7 Barrel Material: 416R Stainless Steel Gun Make: AR Platform Gun Model: AR-15 Weight: 3.3 lb Features of Criterion Barrels AR-15 Service Rifle DCM w/ Threads Barrel .223 Rem chamber that is designed to safely and effectively fire .223 Remington Honed and hand-lapped rifling for bore uniformity and a pristine internal finish aids in barrel cleaning and paramount for accuracy Finely polished chambers for reliable extraction and feeding Rifle gas system compatible with AR15 gas tube system Gas hole tuned for proper function with and without suppressor 0.750in Gas Block, dimpled for ease of installation and solid lock-up 1/228 TPI muzzle threads compatible with a wide range of muzzle devices and suppressors Precision-machined barrel extension with M4 feed ramps Package Contents: Criterion Barrels AR-15 Service Rifle DCM w/ Threads Barrel