PS M10 9MM VS 45

[AOK]

Is there enough difference between the two to warrant having both a Powder Springs M10/9mm and a M10/45?

 

[Grant435]

Which one do you currently have?

 

[Grant435]

Are you going to put uppers on them or just leave as is and shoot?

 

[AOK]

I have a M10/9mm, which I bought mainly because 9mm is half the price to shoot. I have the Lage M10MK2 upper which I really like, but actually love shooting it in stock form with my fat mac can. I have a wood stock on it which aligns the sights perfectly with a good check weld.

 

[CapnMorgan]

I'd probably invest in a m11/9 or m11/a1 before a second m10. but my m10 is a 45 and I have a 9mm conversion for it. I love shooting 45 and rarely use the 9mm conversion.

 

[Gaujo]

Assuming you got the nine because if you had the 45 you already have the nine. I would just change the grip to a 45.

 

[A&S Conversions]

They are both RPB, but I have both. The M10/9 has had an Uzi magwell conversion. The original M10/9 mags are hard to find and expensive. There are some knockoff mags, but again can sometimes be problematic to locate. Uzi mags are double stack double feed so they are easy to load. They are easily found and very reasonably priced. There is an adapter for the .45 to run 9mm, but that gets you back to having to source the original design mags. Of course .45 could be run with the Uzi magwell but .45 Uzi mags are lower capacity and more limited to find. Those also have knockoffs that are higher in capacity, but still limited to find. So I shoot .45 with Grease Gun mags in the M10/45 and 9mm with Uzi mags. Because of the way the Mac style receiver is laid out and how many exist in the registry as transferables, I can see more mechanisms from other firearms adapted to the Mac style family of RRs.

Scott

 

[45]

Have both ingram powder springs m10s , 9mm double stack double feed , m10 45 acp I like them both except for the factory stock .that is were the after market makes every thing a little better .

 

[Battering ram NIB]

Sell your m10/9 and buy a m10/45

Your missing out on the awesome power of 1200 rpm .45

 

[AOK]

I love my M10/9mm and will definitely keep it. I'm leaning more and more for the GG 45@450.

 

[A&S Conversions]

If you desire a Grease Gun because it is an iconic WW II subgun, buy one. If what you want is very adjustable ROF in .45 ACP then I would stick with the Mac style RR. With what is going on in the AR world with rotary delayed blowback and roller delayed blowback systems, if very slow ROF .45 is what you desire, I am sure that could be achieved for a lot less than half the money to buy a Grease Gun using a Mac style RR. At something over 600 RPM it is fairly easy to get single round fire with the selector in the AUTO position. Hell it is fairly easy to get 600 RPM from a semiautomatic AR. I think 450 RPM is too slow. Like the MP40, you are guiding the gun, waiting for the next round to fire. How hard would it be to make a GG or MP40 upper for a Mac style RR? That would be a very niche market. But as the cost of transferable machineguns rises, it is harder and harder for a collector to afford one of each of the iconic guns. If what you desire is a very slow ROF, that can be achieved for a lot less than $20,000+. Good luck with your search.

Scott

 

[9406170]

If I were to do it all over again with what I've learned I wouldn't bother buying an M10 at all. Even considering only their original configurations the M-11/NINEmm blows the M10s clear out of the water, and this lead is only increased with modern uppers.

I think you'll find an Uzi-converted M10/9 with .45 Uzi mags and an upper will scratch the heavy bullet itch a lot better than a second M10. Yeah, 22 rounds is less than 30, and if there was a true GG form factor double column single feed 9mm magazine it would be nearly large enough (if topstrap width the entire length of the mag) to have quad stacks with twinned double stacked columns feeding to a single positon a la kp/31 coffin mags and even a double stack single feed could hold 45-50 rounds - but that's theory and this is the real world.

What's your cost-benefit analysis show for buying a nearly identical gun whose only difference is a larger and less comfortable grip to hold heavier magazines for a 1/3 increase in capacity for one upper among a half dozen you almost never use and a few you use quite frequently?

Hell, if you have a few original modified Walther mags then selling two or three would pay for the entire conversion and having some tabs welded in and a repark job while you're at it. Then you're in the black on a conversion to a more valuable, more versatile, and more comfortable configuration where $20 for a 25 or 32 round magazine is wildly overpriced while $200 for an OG M10/9 mag is a steal.

Now you have my two bits and it's probably worth what you've paid for it.

 

[Gaffshot]

Sell your m10/9 and buy a m10/45

Your missing out on the awesome power of 1200 rpm .45

this

 

[100 bullets]

If you were planning on using an extended upper that could take magazines or drums in front of the receiver I would go with a M10 in 9mm over a M10 in 45. The pistol grip on M10/45 is bulky and not as comfortable as the 9mm grip. If you were going to go stock go with a M10/45 because you can use both with a grip insert. It's also easier to find magazines with a M10/45

 

[Kramer]

I went with the M10/45 since it was the original caliber, as mentioned-awesome power of 1200 rpm of 45, and easier and cheaper to find mags. Spend the $15 on the Lage duel mag catch and you can use GI grease gun mags and original MAC/Cobray mags interchangeably.