CMMG BHOA ADAPTER (GEN. 2) 22AFEFF
The BHOA Adapter is an Upgrade for the Model Alpha, Model Bravo, & Model Echo Conversion Kits.
The Evolution Bolt Hold Open Actuator Adapter allows for full function of your rifle's existing bolt catch. The CMMG actuator is compatible with any .22 Atchisson style conversion kit, dedicated or drop-in. It optimizes magazine fit and removes play between the upper and lower.