Taran Tactical Innovations 2011 9mm/38 Super 4mm +2 Magazine Base Pad Gray

The 4mm is the middle height in TTI's 2011 base pad line. It adds two rounds to a 140mm magazine on the factory spring and follower, taking a 20rd tube to 22rd, and the finished magazine still drops through the USPSA 140mm gauge. That is the whole point of the part: more rounds without stepping outside division rules.

Fitment covers 9mm and 38 Super 2011 style magazines from Staccato, Infinity, Springfield Prodigy, and Atlas. It will bolt onto other 2011 magazines as well, but the 140mm tube is where the math works out. The gray finish also gives a fast visual index between magazine types when several are stacked in a range bag.