MAC-10 (semi) advice / information needed.

barnchicken

barnchicken

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Hey CFF,

Quick couple of questions for anyone that may have experience with these pistols. The "I need this" bug has bit again and I'm hunting for a MAC-10 variant, semi-auto only (I know, I know).

Do any of you have experience with these variants? Aside from knowing they feel like a brick and made in a garage. Information is out there but seems to be scarce and limited. I've been eyeing the Pre-open bolt ban RPBs to have one as true to original as possible. Though I've also seen some Ingram M10A1 marked closed bolt semi's. Seem to be more on the rare side regardless. Pricing as well on these seem to be everywhere, no mid point. I'll see one sell for $1,200, and another sell for $3000. Does anyone have an idea on what a fair market price would be for one of these? Known issues?

Thanks in advance, I'm going down a pre-ban 80s / 90s spiral and it's becoming unhealthy.

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I had a Master piece arms closed bolt M10 in 45 1990’s vintage. Quality was poor, particularly the firing pin which was cast and prone to breaking. Sights are terrible and not well regulated. In todays world I would go ahead and drill it for a pistol red dot of some sort. Nice flat surface on the back lower which gives plenty of real estate to try something.
Magazines were modified M3 grease guns mags which at the time were cheap and plentiful.
All that said it was fun to shoot and quite reliable.
 
I had a side charging MPA, but it wasn't great. The side cocking housing was screwed on and didn't want to be. It did run when everything was tight but all it was really good for was mag dumps.

I guess nodded with a brace it would be more practical but that's probably going to be a sore point for a bit lol
 
I had an open bolt M10 pistol decades ago and it sucked as a pistol, way too heavy and the open bolt configuration doesn't help in the accuracy department. Sold it for enough to buy a real M10/45 SMG.

If you decide you can't live without a semi M10 I think you'll enjoy it more as a SBR than a pistol. Also I'd go 45 since there are a ton of 9mm SMG options out there.

i didn't shoot the semi gun enough to recall but my full auto gun isn't picky about ammo. I shoot cast lead 230 round nose, 230 FMJ ball and even cast lead 200 SWC reloads with no issues out of grease gun mags.

I'm not sure if the semi guns will accept caliber conversions but I have a 9mm upper and magwell adapter for my FA gun.
 
If you can get the open bolt variety for a good price, I doubt you'll lose money on it.
Mags are available, parts are available and there's not much in there that breaks.
Like Clicker mentions, I'd SBR it with one of Practical Solutions side folding Mini Uzi stocks.

You know you want it!
 
If you were to get it, and say, a brace of some sort, you might be able to do a free "amnesty" form 1 if you were so inclined.
But you'd have to act quickly.
 
imho, go full auto or don’t bother. There’s lots of better large format pistols available at this point that work better as a pistol and have better sbr options than the mac10 wire stock. I’ve got a fa m11/9 and I take it out all the time and the awesomeness hasn’t worn off, but all the upgrade options that lage has available for it elevate it to a higher level. All that said, google for vmac9. They’re making new semi autos that won’t break the bank, but you might wait a while to get one since they’re a small company.
 
I don't have a semi MAC but if you are set on one I would definitely go for one of the original open bolt versions. Avoid the older closed bolt "Texas" guns. They use some non-standard parts and welds can be weak. One of my MGs is a Texas gun and I had Sam at Practical Solutions totally rework it.

I would recommend SBRing the gun. The open bolt guns will work with a lot of the standard parts so getting a good stock shouldn't be a problem. Avoid the factory wire stock, it isn't stable and can collapse while you are shooting. Practical Solutions offers an Uzi stock that is both extremely stable and has a classic look.

This is my 9mm M10 with the Uzi stock (and Uzi mag conversion):

M10_Uzi_Stock_Edited.jpg


If I were buying an original semi MAC I would absolutely get the .45 ACP. It uses grease gun mags that are readily available and reliable. The 9mm MACs use various mags (depending on model and who built it) that are hard to get, expensive, low quality, or some combination of those features.

Lastly, for a lot of great information check out the book "The MAC Man." Great book for anyone interested in the MAC guns or their history.

Amazon product ASIN 0982391811
 
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