SGM Tactical Vepr 12 gauge shotgun magazine, 12-round capacity, fits the Vepr 12 gauge. All SGM Tactical mags are engineered through CAD (Computer Aided Design) systems and manufactured to SAE standards in an ISO 9001:2015 approved manufacturing facility in the USA. Injection molds are cut from P20 pre-hardened tooling steel and retractable cores are cut from S-7 heat treated steel for accuracy of all mag components for years to come. The composite/glass-filled polymer was specifically chosen to provide an extremely durable, internally slick, fast-feeding magazine, with springs that are slightly longer for more uniform pressure and specially coated to resist moisture. Each design is tested for perfect fit, smooth, fast, reliable feeding, and durability across a wide range of ammunition manufacturers.