HDPS Push Button Hinges / HDPS skeleton stock all mounted and ready to install (compliance part)

Stocks size is 8.5″, which will give the same total length of the UMP folding stock set up.

-Block C and hinge – 1″
-Shoulder rubber pad – .5″


– Same of UMP stock, but adjustable .5″ up or down
The HDPS stock and hinges can be purchased with Block “C” or you can purchase the Block only and install the folding stock yourself. It can be made to fold to the Left or Right. Advantage in this set up is ZERO flex unlike the UMP polymer stock, positive locking open or closed, no rattle….an excellent feel for those that actually want be able to fire the weapon with comfort and precision and not only looks.

ALSO- the stock can be the THIRD U.S. made compliance part!!

Out of stock

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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.