ProMag Ruger P-series mags

**SkullBone** · March 2nd, 2009, 03:39 PM

Picked up a new 15rd ProMag for my Ruger P89. The mag only held 14 rds and would jam a lot. Took it apart and compared it to the Ruger factory mag and found that the promag spring was longer by two whole coils. The spring was okay quality, just too long. So , I cut off those two coils and the mag now holds 15rds and shot without a problem for 300rds(20reloads). So if you purchased one of these and didn't get around to throwing it out yet, try checking the spring length.

**mikepro8** · March 2nd, 2009, 08:33 PM

I havent owned a promag mag I have liked yet. I ordered 3 10/22 mags from sportsmansguide and ended up throwing them out.
Havent had much better luck with their AK mags.... I will never again buy Promag.

**Lone Wolf** · March 2nd, 2009, 10:25 PM

Its always best to buy factory mags with certain exceptions (like Wilson Combat 1911 mags,for example) and be done with it. That way you spare yourself of aftermarket mag drama!