Quote Originally Posted by mattiooo View Post
If you're looking to be able to swap back and forth, the CMMG kit is great. Works reliably and is very easy to change back and forth.

It's just a drop in bolt and .22lr AR magazines. They have them in Colorado compliant versions as well.

https://www.cmmginc.com/product/22lr...agazines-grey/
Thanks, that's the product I was looking at, just wasn't sure on its reliability and wondering if anyone had any first hand knowledge. I also so the other link you posted. Thanks for the feedback.