I would like a short barreled .22 for my SBR'ed lower. I had a Chiappa upper for a short time but didn't want to modify a factory upper so now I'm looking at building one. My thoughts are to get a CMMG conversion bolt/mag and use a stripped upper, chopped down 556 barrel and probably a Troy Alpha or MI Keymod rail.
Here is where I am wondering. Does the CMMG conversion use the gas system? If not, would I have to plug the hole at the barrel or chop it below?
Here is where I am wondering. Does the CMMG conversion use the gas system? If not, would I have to plug the hole at the barrel or chop it below?