Heckler & Koch MP5K/SP5K/UMP Folding Stock

Heckler & Koch
$99.00 $90.00
(30 reviews)
Current Stock:
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Heckler & Koch MP5K/SP5K/UMP Folding Stock


Factory Heckler & Koch side-folding stock for H&K MP5K & UMP type rifles as well as all B&T APC model rifles.

OEM Stock for European H&K SP5Ks.


  • MP5K
  • SP5K
  • SP89
  • MP5K Clones & Other Custom Builds
  • B&T APC9 / APC40 / APC45 / APC10 / APC223 / APC308


  • 5
    Replace the brace

    Posted by John on 12th Oct 2023

    It bolted right into my sb brace mount for my mp5 so I didn’t need to buy the mount portion. Just this. One bolt it was installed. Easy to install folds perfectly and works. Mp5k

  • 5
    H&K UMP stock

    Posted by Randy on 3rd Sep 2023

    Great stock, easy install.

  • 5
    HK UMP Folding Stock (without folding adapter)

    Posted by High End Gun Whore on 31st Aug 2023

    Fits the B&T APC9SD perfectly! Great price!

  • 5
    Folding stock

    Posted by Derek on 31st Aug 2023

    Fit my SBR AP5-M perfectly along with the sb tactical folding adapter

  • 5
    Perfect Fit

    Posted by I.G. on 14th Aug 2023

    I used this to replace an SBT5A brace. The reused bolt securing it to the folding mechanism was quite stiff to reinstall once I swapped in the stock, but not enough that it impeded function in any way. It locks up securely with no wobble or fitment issues. Just as secure as a fixed stock. And because the bolt was so tight, the stock doesn't swing around when it's folded, which actually makes it that much more practical. This stock also adds more to the LOP compared to a B&T model.

  • 5
    UMP folding Stock

    Posted by Brian Bell on 13th Jul 2023

    Just as I needed at a price that is hard to beat. Coupled with their amazing service, I could not have asked for more.

  • 5
    Great stock

    Posted by John b on 19th Jun 2023

    Works great for me .

  • 5
    Perfect!!! Fit right into the pistol brace joint.

    Posted by Jimmy on 9th Jun 2023

    Perfect! Fits perfectly into the SB tactical brace joint.

  • 5
    Perfect folder for MP5

    Posted by Ben on 1st Jun 2023

    Added this to my SBR MP5K with an sb tactical folder mech and fit was perfect and the stock is the best bang for your buck if you are looking to go this route. Rubber butt pad feels great also!