Pearce Grip PGGP Mid/Full Size Frame

A: This grip extension is for mid and full size double stack pistols chambered in 9mm, 40sw, and 45 GAP, and will add to the capacity of each "Fits Glock Mid/Full Size +3 9mm,+2 40sw,+1 45gap"

A: This fits GLOCK 17, 18, 19, 22, 23, 24, 31, 32, 34, 35, 37, 38 Adds 3 to 9mm Luger Adds 2 to .40 S&W Adds 1 to .45 GAP. So looks like it's for double stack magazines. Hope this helps.

A: Suha, it is for double stack 9mm (adds 3rds), .40S&W (adds 2rds) and .45GAP (adds 1rd). Cheers and stay safe! --- Fits GLOCK Models 17, 18, 19, 22, 23, 24, 31, 32, 34, 35, 37, 38.

A: It is for double stack magazines. GLOCK 17, 18, 19, 22, 23, 24, 31, 32, 34, 35, 37, 38. Adds +3 to 9mm Luger Adds +2 to .40 S&W Adds +1 to .45 GAP. Stay safe and happy plinking!!