Dirty Bird Brand AR-15 Parts
Description
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 of each match quality barrel. The 1-7.7 twist on the 20″ 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 (1/2×28 threaded muzzle) and post-ban (11° target crown) configurations.
Chambers are finished, but barrels should be headspaced and installed by a qualified gunsmith.
COMES WITH THREADS
Additional information
| Weight | 33.6 oz |
|---|---|
| Dimensions | 22 × 3 × 3 in |
| Finish | Stainless |
| Barrel Profile | Heavy |
| Gas System Length | Rifle |
| Gas Block Journal | 0.75 |
| Barrel Length (inches) | 20 |
| Barrel Chamber | .223 Wylde |
| Twist Rate | 1:7.7 |
| Muzzle Thread Pattern | 1/2×28 |
| MPN | 15206-DCM-POST |
| UPC | 15206-DCM-POST |
Compliance
NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.
