5.56mm, Mid-Length, 16″, Medium, 4150, Black Nitride, 1:8

Description

• Chambered in 5.56mm
• Gas System: Mid-Length
• Length: 16″
• Contour/Profile: Medium
• Material: 4150 Chrome Moly
• Coating: Black Nitride
• Twist: 1:8
• Thread: 1/2 x 28
• Rifling: Button Rifled 5-Groove Bore
• M4 Feed Ramps
• 11° Target Crown