Scherer 2plus2 and super2 +2 magazine extensions comes with extra power spring. The Scherer 2plus2 and the Scherer super 2 are the only mag +2 extensions that will not fall off. It has an "L" shaped insert that locks the +2 bottom plate in place. The 2plus2 is designed for pre-ban fully metal lined (FML) hi-capacity mags in the 9mm and .40 cal. The super 2 is designed to fit G20 10mm mags and G21 .45cal mags.
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