.22 CMMG mags fit too tight in my lower

[control_z]

Hey guys, just got my ss conversion kit and the 10 rd CMMG mags are way too tight in my LRB lower. What part/parts of the mag exactly do I sand down to get them to slide freely?

[streaker69]

On the back side of the mag on each side of the ridge there's two little tabs. Sand each one of those down a little bit until you get the right fit.

[control_z]

Thanks. I figured it out when I logged off earlier. I should of just looked at it more carefully.