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New Latest Production HDPS HK USC/UMP Stock Block -B Pin Style. For use with all HK UMP factory or US-made folding stocks. Each unit comes with a new push-pin design. This is a required part of the HK USC-UMP style conversion.
2 Μαΐ 2017 · This write-up covers the stock block conversion method for converting the HK USC to a UMP clone. It is a basic conversion only for the standard .45 ACP USC and does not delve into the other caliber conversions.
There are two methods for the Ump conversion: the Block Style bolt up solution and the Rear Section Fuse method. The rear section fuse is the most authentic and allows for a push pin breakdown, like the factory UMP and is dimensionally identical.
Blue Ridge Supplies is a HK Authorized Premium Dealer. We carry whole line of HK-USA products, including Pistols, Rifles, Parts and accessories
HK USC stock adapter to attach the ACR folding adjustable stock; ACR adjustable stock complete with roll pin and hardware; This kit includes the stock block and the actual ACR stock as a set. Ready to install. Perfect for that USC to UMP conversions.
The Gibbous Outfitters G3 Stock Adapter brings a full length fixed stock to the MP5K platform. Designed in collaboration with Nick Chen of The Firearms Blog.
STOCK BLOCK “B” – Come with long cross eyelet/thumb flat screws in black already!! (We have a cheaper model with a pin/ring instead screws as well. This is the BEST and ONLY way to safely convert your currently Sporter Carbine Hk USC to an Assault Weapon Style Hk UMP. Proven quality part since 2003!
