CMMG Barrel Sub-Assm 16.1inch M4 4140CM SBN 22LR 22D7C0A

Perfect for building your custom dedicated 22LR AR-15 upper group. Also Includes barrel collar to replace the chamber adapter on your 22AR Conversion.

Available as:

• 4.5” Barrel available with or without a Collar Kit
• Medium Taper Profile
• 4140 Chrome Moly
• Salt Bath Nitride Finish inside and out
• 1:16 Twist
• 22LR Sprorting Chamber
• Threaded 1/2-28"

Available as:

• 16.1″ Barrel available with or without a Collar Kit
• M4 Profile
• 4140 Chrome Moly
• Salt Bath Nitride Finish inside and out
• 1:16 Twist
• 22LR Sprorting Chamber
• Threaded 1/2-28
• .750″ Carbine length Journal

Or Available as:

• 9″ Barrel with a Medium Taper Profile
• NO Collar Kit available
• 4140 Chrome Moly
• Salt Bath Nitride Finish inside and out
• 1:16 Twist
• 22LR Sporting Chamber
• Threaded 1/2-28"