MPA 930SST and VZ 58 Folding Stock

| December 1, 2014 | 5 Comments

We’re now officially in week 3 of waiting for the stamp to come back on the MPA 930SST “Mini” MAC10.

The surplus VZ58 stock from Czechoslovakia arrived last week, and I thought I would do a mockup. The rear of the MPA 930SST has not been modified to accept a stock yet, so what you see here is just positioning. I won’t do the work on the MPA until my stamp arrives.

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With the stock extended, the Mini MAC measures 17.5″ long. That’s just a half inch longer than my vSBR AK47 Mini Draco¬†when folded¬†. This is going to be quite a compact PDW.

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The MPA 930SST measures about 9″ when folded.

One thing that is making me nervous is how the stock covers the ejection port. I will be curious to see if this leads to a malfunction.

Hopefully my stamp will come back this week or next, and I’ll be able to permanently attach the stock. The VZ58 came with a single screw; and while this may be good enough, a good friend of mine thinks we should weld it.

About the Author:

Short Barrel Shepherd Short Barrel Shepherd is a regular guy and works to make Web sites and mobile apps easier for people to use. He spends his free time attending fight-focused firearm, knife, and combatives training, motorcycling, writing, and playing games. His daily carry is a Glock 19 pistol and an AR15 .300 Blackout pistol in a backpack.
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5 Comments on "MPA 930SST and VZ 58 Folding Stock"

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  1. Hanns says:

    Would is be possible to flip the folder to a left hand configuration? The hinge mechanism doesn’t look too complicated, I would think it would deploy easier and work better as a left handed folder.

  2. David says:

    Thoughts:
    1. You could always use a backing plate inside the receiver to further reinforce the single screw.
    2. It almost looks like the folded stock blocks the muzzle, which would seem like a serious problem.
    3. You’re definitely going to have ejection problems with the stock as shown.
    4. I like the idea of making it a left-side folder, but I suppose you would need to cut/reweld the stock to make it work correctly. (But if you’re already going to weld the adapter, go for it!)

  3. Dolomite_supafly says:

    Do these still suffer from the significant trigger slap? If so seems like someone could engineer a new, drop in, trigger to address that. I always wanted a MAC and finally bought one a few years ago. I sold it 3 days later after shooting it and not being able to feel my finger after the first magazine.

    • Short Barrel Shepherd Short Barrel Shepherd says:

      It was pretty bad by my estimation; some say there’s a more modern trigger inside and I’ve yet to confirm if my model has the anti-slap version or not.

  4. Rick says:

    SBS, here’s a link to the replacement hammer from MPA that eliminates the trigger slap. I’ve not changed mine out yet, I am still trying to decide if I want to keep my mac and the part is kinda pricey. Love your blog and videos, I always check for updates. Keep up the good work and Thank you!!!

    http://masterpiecearms.com/shop/mpa930-16d/

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