CMMG .22LR Uppers & Magazines

[zimagold]

I have a 4.5" barrel cmmg kit and sparrow II under a 9" rail. 1/2 inch of sparrow sticks out just past the handguard. My mini honeybager setup.

I've actually had the best reliability with M&P 15-22 mags. I use a Redi-Mag (Boonie Packer) adapter which allows for last round hold open. It also reduces the mag well dimensions to hold the mags relatively tight. When I bought mine they said it was max spec to allow for tight fit in mag wells. I did have to fit the adapter to my magwell with a little sanding, less than 5min. Seems to work well in every magwell I have tried after sanding.

It's surprisingly accurate and a lot of quiet fun.

Most ammo runs well, but CCI Tactical seemed to be the best combination of accuracy, reliability, and cost.