The SP10 & SP45 Stribog UMP Lower uses UMP style Magazines as well as AR-15 trigger groups, grips and safety selectors. The lower comes with an internal ambidextrous bolt catch and billet aluminum magazine release. This lower is compatible with the SP10A3 and SP45A3.
***This lower is not a firearm and does NOT need to be shipped to an FFL***
Features:
– Internal bolt catch design with ambi controls.
– Flared magwell for easier magazine insertion.
– 6061 Billet aluminum magazine release.
– AR15 safety selecter spring and detent included.
– Compatiable with most AR trigger groups and grips.
– Lower is Made from billet 6061 aluminium.
– Lowers are hard coat anodized.
– Weight = 10.4oz
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