How to buy hi-cap mags limited to 10rds?

[Crosswind]

Just finished an IPSC match today. I shoot production and all 5 of my mags are the double-stack type with the plastic extension-type base (i.e. one third of the magazine's length is plastic block).

During my "load-and-make-ready" the plastic block just snapped off as I was drawing it out of my pocket. This is the second time the plastic block failed, the first time I was practicing reloads. Luckily it was the last stage of the day and it didn't require 5 mags; but still I can't tolerate the possibility of this happening again during a match.

So before I start canvassing my local dealers, where do you guys buy your hi-cap magazines (that are pinned, blocked, riveted, etc.)?

I'm currently using a SIG Sauer P226 with Mec-Gar 10rd magazines. I'm gonna guess that Mec-Gar didn't design these mags for the rigors of IPSC.

 

[Canuck223]

Pinned mags are a pain. The plastic bases break. Those with dimples are a pain to clean. Probably the best mag style for our needs is the ribbed type Beretta ship with the 92's, which converts the mag to a single stack, but allows full length cleaning.

 

[Wolfstrack]

for a SIG 226 one good choice will be all metal 15 rnds made for Norc NP22 which has an inside baseplate vertical pin, a permanent pinning solution for legal 10 rnds
- see Marstar for stock or EE parts forum