The PMAG 5 Round Limiter installs in standard PMAG 20 bodies, reducing the magazine capacity to 5 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: This product does NOT make PMAG 20 magazines legal in jurisdictions where magazines with a capacity of 20 rounds are prohibited. Consult all local, state, and federal regulations prior to usage. Made in U.S.A.