|Barrel includes a JP EnhancedBolt™ individually head-spaced to the barrel for flawless fit and function.
Gas system: Mid-length
Twist: 1:8 button rifled
Contour: .650 under hand guard/.740 in front of gas block
Diameter at gas block: .750
Muzzle threads: 1/2"-28 TPI
Material: 4140 chrome moly steel
Weight: 25.5 oz.
Compatible with .650 Short JP Thermal Dissipator™ (JPTD650S)