My MPX must have been in stock for a while because although it is a Gen 2 gun, the mag has a black follower, which I understand identifies it as a Gen 1 magazine. The mag feeds fine, but the gun will not hold-open on empty. I wondering if this is a mag issue or some other problem. Right now I don't have a G2 mag to test this.
Posts: 2252 | Location: Missouri | Registered: November 10, 2003
It might be a mag problem. Hard to diagnose if you don't have another mag. I have been running 20 and 30 round gen1 mags in my gen2 with no problems.
Regards, Kent j
You can learn something from everyone you meet, If nothing else you can learn you don't want to be like them It's only racist to those who want it to be. It's a magazine, clips are for potato chips and hair
Gen 1 magazines in a Gen 2 MPX should not be causing LRBHO issues. It may be that particular magazine, it should not be Gen 1 magazines in general.
The major difference between Gen 1 and Gen 2 magazines was the feedlip design. This should not be affecting your LRBHO function.
Since you do not have a Gen 2 magazine, I am wondering if there might be something wrong with your bold-hold-open mechanism, but without additional mags to isolate the failing component, I can't say more.