Mec-Gar SIG P226 9mm 18-Round Magazine

Mec-Gar builds SIG Sauer's factory magazines, so a Mec-Gar P226 magazine is not an aftermarket knockoff, it is the same magazine SIG sells with a different headstamp at a lower price. The 18-round version adds three rounds over the standard 15-round magazine through a redesigned tube while staying flush with the frame, giving a P226 a full 18+1 with no basepad extension.

The steel body and anti-friction coating match factory feeding reliability, and the design has decades of duty and competition use behind it. For the money, stocking several Mec-Gar 18-round magazines is the single highest-value move a P226 owner can make before touching the trigger or grips.