Luth-ar BL-11-7 5.56mm 11.50" Button Broached Black Phosphate Chrome Moly Vanadium Fits AR-15

4150 Chrome Molly Vanadium 5.56 mm, button broached barrel. The barrel is threaded with a 1/2x28 thread pitch, a 1-7 RH twist rate with 6 lands and grooves and an M4 feed ramp. This barrel takes a .750 gas block.

Caliber:	5.56mm
Barrel Type:	Carbine Length
Barrel Material:	Chrome Moly Vanadium
Diameter:	.750
Thread Pattern:	1/2"x28
Twist:	1:7 RH
Barrel Length:	11.50"
Firearm Fit:	AR-15
Grooves:	6
Barrel Finish:	Black Phosphate
Weight:	1.60 lbs
Barrel Description:	Button Broached