I’ve got two CMMG banshees 5.7x28.
8” and 5” barrel with pistol braces and AR15 lowers.
They use the 32 round magazines sold by CMMG.
I’ve shot both a lot and they are fun, accurate, and the low recoil and weight that I desire.
I just ordered a Gibbz side charging upper and a 8” barrel and BCG...