ProMag colt mag adapter block

Timfoilhat · Mar 26, 2020

Anybody use one? https://promagindustries.com/ar-15-m16-9mm-magazine-quick-change-adapter-block-black-polymer/
Curious if this is just as good as a Hahn or Stern Defense or other quality block. It's cheap at $40 from Lanbo's online.

I'm using Endomags successfully for now, but might want a different solution if I'm going to stack some mags for the new toy.

Beef15 · Mar 26, 2020

Is it as good? I don't know.
Has it made it past 1000 rounds with very few issues? Yes, I quit pretending I can track things at that point.
Issues: apparently while fighting a malfunction at a match I believe was related to the bolt the ejector got knocked out of position, bent it back. Haven't had any major issues before or since.
I highly doubt it will reliably feed hollowpoints, it appears to me it sits a bit low and rounds definitely hit the barrel pretty hard.

Timfoilhat · Mar 26, 2020

Beef15 said:
Is it as good? I don't know.
Has it made it past 1000 rounds with very few issues? Yes, I quit pretending I can track things at that point.
Issues: apparently while fighting a malfunction at a match I believe was related to the bolt the ejector got knocked out of position, bent it back. Haven't had any major issues before or since.
I highly doubt it will reliably feed hollowpoints, it appears to me it sits a bit low and rounds definitely hit the barrel pretty hard.

good feedback, thank you

JRHorne · Mar 28, 2020

Lanbos has it for $40. I'm ordering one next time I place an order to try out. I've got 3 AR9 uppers and only 1 dedicated lower, so this will be fun to try.

ProMag colt mag adapter block

Timfoilhat

Time is my accomplice

Beef15

B or somesuch

Timfoilhat

Time is my accomplice

JRHorne

Super Larpio Brother