Magblock 10 Round Limiter for Pmag 30 MOE Gen M2 (3 Pack) Installs in PMAG 30 round bodies, reducing the magazine capacity to 10 rounds Magblock 10/30 Magazine Capacity Limiter for Magpul 30 round Pmags in .223/5.56mm. Includes 3 in a pack Works in Pmag MOE, Pmag Gen 2, Emag, and Magpul G36 magazines. Made in the USA