KKF Discussion Forum>
40/357sig from Sten mags
echo_5

1 post
17-Mar-2008
5:47 AM
Will they just load and feed right away? Will I have to adjust feed lips? Anyone got specs or a schematic? Thanks for any feedback.
Administrator
KVW
3678 post s
17-Mar-2008
9:54 AM
I've run 40's and 357 SIGs in STEN mags. Some work straight away, and some need a bit of lip tweeking to ride a tad higher for the fatter case.
Thx!
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Kurt@KKF
Member-The Fightin' 420/Sumter Div.
echo_5

2 post s
18-Mar-2008
2:20 PM
Kurt, what is mag capacity for 40S&W from 30/32 rd stens?
Administrator
KVW
3684 post s
19-Mar-2008
12:40 PM
19-20.
Thx!
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Kurt@KKF
Member-The Fightin' 420/Sumter Div.
echo_5

3 post s
4-Apr-2008
9:28 AM
Kurt, thanks for your help so far. I've got one of your magwell blocks and some Sten mags to run a 40S&W AR. Can you measure or post a pic of the feed lip "mod"? Should I bend with pliers or dremel 'em open?
Thanks
-James

Last Edited on 4-Apr-2008 11:33 AM

TinyVN1600

6 post s
6-Apr-2008
4:10 AM
Hey Kurt any chance of a quick change barrel setup on a .40/.357 SIG upper? My cheap side balks at buying two whole uppers when only a different barrel between the two.
Tiny
Administrator
KVW
3706 post s
7-Apr-2008
6:08 AM
"Kurt, thanks for your help so far. I've got one of your magwell blocks and some Sten mags to run a 40S&W AR. Can you measure or post a pic of the feed lip "mod"? Should I bend with pliers or dremel 'em open?"

Have you tried it with 40's yet? You can bend them slightly and try again if not feeding now.

Yes, there are uppers out there that have quick-change barrels.
Thx!
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Kurt@KKF
Member-The Fightin' 420/Sumter Div.