for Glock model 36 plus one extension. Replaces the magazine floor plate converting the factory magazines to seven round capacity. External locking feature doubles as a contour blending feature completing the lower rear of grip for Glock Model 26/27/33 grip extension. Replaces the magazine floor plate Model 29 fits M30 nine round mags also replaces the magazine floor plate as with the model 36 plus one extension, replaces the magazine floor plate converting the factory magazines to