.45 Cal. THIRTY rounds magazine HDPS CORP modified to fit your Hk UMP SMG lower or on your Hk UMP lower

This is an all steel construction .45 Cal. THIRTY rounds magazine HDPS CORP modified to fit your Hk UMP SMG lower or on your Hk UMP lower for your USC conversion to UMP.

Refinished in Teflon Molly Coat SOCOM Black and flawless performance, you get 30 rds instead 25 rds AND the magazine itself will count the 3 needed U.S. made compliance parts to meet the 922.r legal status (great value!) It will not lock the bolt open on last round, but delivers performance and reliability as the 25 rds Hk magazine.

Limited quantities, get yours now!

Magazine for UMP lowers

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Also, we have a Machine Shop and a Refinish Shop that will make possible to build your custom dream come true weapon.

Homeland Defense & Police Supply Corp

Our Mission
We specialize in Assault Weapons, Class 3 Firearms and Suppressors for Civilians and will also provide help and logistic for Govt. Agencies and Police Depts.