Suomi KP(M-31) SMG in 9mm
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sharpie443
- Posts: 60
- Joined: Fri Mar 23, 2012 12:19 am
Suomi KP(M-31) SMG in 9mm
Got to shoot this firearm today for the first time. We have had it in the shop for quite a long time but i never got around to it. Finally i decided to do a video on it and it's history today since we were going to be out shooting video for the businesses anyway. So i grabbed it off the shelf and threw it in the truck. I had already fell in love with the history and rugged look of the gun but after shooting it today i think i have to have it. It had very little recoil and surprisingly the trigger pull was nice. I had some problems with the cheap bulk ammo I brought to use in it but it runs fine with +P 9mm. It has one heck of a hard spring in it but i wonder if it will take lighter loads after i put a few hundred rounds threw it. Probably not but I can hope and i hope you enjoy the video.
[BBvideo 425,350]http://www.youtube.com/watch?v=dCR9iZ33_kk[/BBvideo]
[BBvideo 425,350]http://www.youtube.com/watch?v=dCR9iZ33_kk[/BBvideo]
- Junk Yard Dog
- Owner/Founder

- Posts: 48861
- Joined: Sat Aug 27, 2011 12:54 pm
- Location: New York
Re: Suomi KP(M-31) SMG in 9mm
Leave it as it is. The ages have been at work on it and man can only mar it.
Don't hit at all if it is honorably possible to avoid hitting; but never hit soft.
Theodore Roosevelt
Don't hit at all if it is honorably possible to avoid hitting; but never hit soft.
Theodore Roosevelt
Re: Suomi KP(M-31) SMG in 9mm
i would like to have one but i did not know how hard it would be to make it into a sbr .i still see parts kits on gun broker sometimes. it would look good with my pps43.
Re: Suomi KP(M-31) SMG in 9mm
The commerce which maybe carried on with the people inhabiting the line you will pursue renders a knowledge of these people important ~Thomas Jefferson~ (to- Lewis and Clark)
- WeldonHunter
- Posts: 5242
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Re: Suomi KP(M-31) SMG in 9mm
Centerfire Systems has parts kits as well as the complete rifle http://centerfiresystems.com/search.aspx?find=suomi and J&G has the complete rifle http://www.jgsales.com/-p-3889.html and I just noticed they dropped the price to $399.95. I see these a lot but never really put a lot of them up on guns-deals because I haven't seen a lot of interest in them.dou44 wrote:i would like to have one but i did not know how hard it would be to make it into a sbr .i still see parts kits on gun broker sometimes. it would look good with my pps43.
- Junk Yard Dog
- Owner/Founder

- Posts: 48861
- Joined: Sat Aug 27, 2011 12:54 pm
- Location: New York
Re: Suomi KP(M-31) SMG in 9mm
Kit builds seemed to be all over the place in the 90's, Stens, FAL's, AK's, you name it, but then the kits got expensive.
Leave it as it is. The ages have been at work on it and man can only mar it.
Don't hit at all if it is honorably possible to avoid hitting; but never hit soft.
Theodore Roosevelt
Don't hit at all if it is honorably possible to avoid hitting; but never hit soft.
Theodore Roosevelt
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pgpipefitter
- Posts: 12
- Joined: Fri Feb 03, 2012 12:35 pm
Re: Suomi KP(M-31) SMG in 9mm
In the video the Suomi semi auto has a lot of misfeeds as it is recocked many times may need a new mag?
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Mountain Man
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- Location: North Georgia Mountains
Re: Suomi KP(M-31) SMG in 9mm
I have on and I had a drum that I had I returned due to its inability to feed properly. The one I have has a very hard trigger pull but it functions fine even with the reloads that I use. I reload all my 9mm and it has cycled fine with any of them. It is a little to heavy for much off hand shooting though. The gun itself is very hefty and with a full mag, 36 rounds, makes the gun weight somewhere around 12lbs. I found it best fired from a rest position.
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Jolly Green Chopper
- Posts: 904
- Joined: Sat Feb 11, 2012 7:17 pm
Re: Suomi KP(M-31) SMG in 9mm
I .saw one at a gun show once but they don't seem to be very common. I don't know anyone who has one but they seem to be a good gun.12 lbs does seem to be heavy.is that with ammo? I did see them in J&G new catalog for $429.95 with one stick or one drum mag$39.95..They are new replica manufactured with new and surplus parts.
Re: Suomi KP(M-31) SMG in 9mm
I believe they are new recievers and barrels and then surplus on the rest. They are HEAVY. The stocks are pure finnish looking. 
The commerce which maybe carried on with the people inhabiting the line you will pursue renders a knowledge of these people important ~Thomas Jefferson~ (to- Lewis and Clark)


