CMMG Barel And Bolt Group Kit 16.1″ M4 - 22LR

Everything you need to convert your existing upper to a dedicated .22LR. Just purchase a magazine and you are ready to go. For best performance use a round style hammer as notched hammers can cause function issues and 36 grain plated nose bullets have proven to be the best choice for function.

Specs:

• 16.1″
• 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