Looking for a MB pistol Guru

Have hecked over and over it definately is not my thumb pushing it up. With no mag in it takes a fair bit of force to push it up. With a mag in you can basically sneeze and it comes up. So I can see with the recoil how that can happen.

For a while I was thinking a weak spring for the little plunger or not enough of a indent in the stop. Dealt with those and is still doing it.

I guess I cannot weaken the springs in the mags.

Recommendations for good reliable mags?
 
springs in mag should have not anything to do with it , as if there are rounds in the mag, the follower can't push up the stop, I don't have a 40, , bullets pushing it up? sounds strange I know, but strange stuff happens.
try taking the slide off and installing the stop and load a couple rounds in mags and see if anything looks off, also with empty mags, any different ones ?
 
Metalform mags engage the slide stop better in my 10mm than the mecgar mags, that your SAM probably came with, do.

slide stops on 10mm/40cal 1911s can be fussy.
 
the follower is thinner than a 45 which the 1911 was made for . I have a 9mm and no problems with it, cheap norc, great gun, I had a SAM, 45 and it as fine. but don't think that would have any thing to holding open with ammo in mag?

I reread this post and messed up , so the P.S. , have you taken the slideoff and check that, the mag body must be having some effect on it.
 
Last edited:
cycbb486 said:
Why is that? Why should they be any different???????

AUGHHHHHHHHH
Click to expand...

The metalform have a somewhat different follower. Seems like it better fills the width of the mag body than the mecgar does, which tends to slip sideways from the projection on the slide stop.

I just installed and tested an Ed Brown 40/10mm slide stop in my RIA gun and tried it today for the first time. 200-ish rounds through 6 assorted mags - metalform, mecgar, tripp cobra (which also did not work with the OEM slide stop) - all 100% for function.

Brownells pn: 087-000-117WB if you're wondering
 
You must log in or register to reply here.
Back
Top Bottom