The PMAG minus 5 round Limiter installs in Gen M3 PMAG bodies, reducing the magazine capacity by Five rounds. Designed for sporting and hunting applications, installation of the Limiter is simple, tool-less, and requires no permanent modification of the magazine body. Note: will not make a banned magazine legal! This product is intended for temporary capacity reduction of PMAG Gen M3 magazines. This product does not constitute a permanent capacity reduction..