I'm going to be using a micro low pro one, but if it sticks out passed the handguard I may get a railed one. I'm using the fortis switch rifle length if that helps. Rainier arms page says it's 12.45 in length
Brownell has a three pack of the chips for about 70 is while I've see the Wilson's going for 32ish at midway? Who sells the better mags even if it's not these guys? Don't mind paying for quality for my new sig 1911r