I'll have to add it to my collection of "evil guns that take pistol mags", plus I've got lotsa 5.7x28Canuck223 said:Check out the Ranger 57 rifle. 10 rounds of legal semi auto ceterfire
Rhineland Arms will be introducing several new rifles in 5.7*28mm, 5.56 and possibly 6.5 Grendel™, with shipments starting around October.