MPA mag catch adjustment

[LC 6.5 Shooter]

Can the mpa mag catch be adjusted. AICS works perfect. MDT mag falls out when running the bolt. Pop back in hard and it holds and runs the round. When running the round it become disengage from the mag catch and drops a little not allowing the next round to feed

 

[RMS6]

MPA sell an adjustable height mag catch that works great.

here it is

MPA Adjustable Mag Catch - MasterPiece Arms, Inc.

This adjustable mag catch can be added to any MPA BA, Comp, ESR, Hybrid, BA Lite, CSR or Ultralite Chassis. The use of this adjustable mag catch is for those rare occasions when the magazine height needs to be adjusted for proper feeding. Please keep in mind, that our standard mag catch will...

masterpiecearms.com

Generally speaking you will have to pick on type of mag and tune the catch for it unless the different types you are using all have the mag catch location on the magazine body relative to the feed lips.

 

[DownhillFromHere]

Hmmm. I had the impression that MPA now ships with the adjustable mag release as standard equipment (but that doesn't necessarily help people who have problems with the old fixed catch). I'd call MPA about it.

My MDT mags fit perfectly in my fixed-latch MPA BA Comp with both Stiller and Defiant actions. I had failure to feed issues with my Vudoo in a different MPA BA Comp chassis; the magazine sat too low (had a small amount of vertical play) and the bolt rode over the top of the last round on the mag. The adjustable latch fixed the problem.

Here's a close-up of the latch. Simple and clever.

 

[DeathBeforeDismount]

The 3 that I have are like ridiculously tight with a super small allen key. I cannot for the life of me get them loose. Tried heat, penetrating oil. Destroyed a bunch of bits and allen keys now the bolt is fucked.

Seriously a dumb piece of engineering. That silver bolt in the picture looks much more appropriate.

 

[st1650]

Anyone know what’s the replacement screw size/pitch for the adjustable latch ? Mine getting seriously worn down and I’d rather change it before it’s too late