How good are they?

They work.

quote:

Originally posted by Marlin Fan:
How good are they?

Depends on the platform. For the M14/M1A they are the go-to for example. For the Beretta 92/M9 they've been problematic over the years but IME are generally functional.

Thank you.

quote:

Originally posted by 1KPerDay:
For the Beretta 92/M9 they've been problematic over the years but IME are generally functional.

As long as you stay away from the parkerized ones and play over in the Middle East, those Checkmate mags are fine. Still, I'd spend a little more and get MecGars (especially for 2011 mags).

They work depending on the gun?

My checkmate mags work in my staccato c2 and prodigy but do not work in my apollo 11.

How would they work in a P226?

quote:

Originally posted by Marlin Fan:
How would they work in a P226?

They work.

quote:

Originally posted by Marlin Fan:
How would they work in a P226?

Are they new production or old?

I seem to remember some feeding issues and rough or sharp feed lip issues when Sig first started using them but from what I remember those issues were corrected but many seemed to flip them when they would get them with a new gun purchase.

I have several 45acp & 9mm-1911 mags that have been flawless though.

Both.

Try them and see

Thank you.

I use them all the time. The P226, P320, 1911, and M1A magazines are good to go. Check-Mate is an OEM supplier to Colt for 1911 magazines for decades.

I also have a bunch of the military issue Beretta M9 magazines, never had an issue with those as well, but I don't live in the desert.

Mine work great in my Kimber 2K11 Pro.

quote:

Originally posted by CAR:
...but I don't live in the desert.

I've never had issue with my Checkmate 1911 10mm mags. But they are only used for slow, methodical shooting with no reloads at speed. So fine for what I use them for, but only rates about 45% on the trust meter.

My Checkmate magazines were all either M1A or 1911, but they worked perfectly.