SMG are those DI guns standard mid length systems (they appear to be in the pics) or is it some kind of proprietary system? Also are they using a proprietary barrel nut for the DI barrels like they do with their piston guns?
SMG are those DI guns standard mid length systems (they appear to be in the pics) or is it some kind of proprietary system? Also are they using a proprietary barrel nut for the DI barrels like they do with their piston guns?
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