Swapping your bolt carrier group with a CMMG Conversion Bolt Group takes only seconds to install and is piston compatible. This .22 Conversion Kit operates on direct blowback, and do not utilize the impingement tube for function. The Bravo Conversion Bolt Group base model is stainless steel and generally easier to clean. This is the most affordable Stainless Steel CMMG conversion kit. It includes the stainless steel conversion bolt group and a 25-round magazine.
Specifications:

Type	Bolt Carrier Group
Model	Bravo
Slide Finish
Slide Material
Barrel Length
Barrel Material
Barrel Finish
Capacity	25
Stock Material
Stock Finish
Includes	Magazine
Max Capacity	25