The 26 is fitted with a 17 round mag onto which I put a Pearce +3 base plate so it holds 20 rounds, and a mag spacer.
Of course I also can use the 10 or 10+3 mags made for the Glock 26 for really deep concealment
or 15 or 15+3 Glock 19 mags with mag spacers
but I like having 21 rounds ready to go without having a long thick slide poking me or knocking on the wooden pew at church or metal chair etc ... the 19 stays home
If the 21 rounds and my spare 20 round mag are about to run dry, (and my BUG) I keep 2- 30 rounders in the car, to get me home to where I keep ... well, ....more
