CMMG .22 Conversion with a PISTON AR
This video demonstrates how to install a CMMG .22 conversion kit into a piston-driven AR-15 upper receiver. It highlights the design differences, specifically the rebated area on the .22 bolt, which allows it to function with piston systems by clearing the piston rod. The presenter notes that compatibility can vary depending on the specific piston system, with some like PWS having integrated pistons in the BCG requiring a different approach.










