double stack for glock Model magazines you will need the LL2 loader,this loader will not work with double stack for glock Model magazines.

The Speedloader easily fits magazines for the following
for Astra - A80, A90
for Beretta - 8040, PX4, 92, 96, Cougar 8000, M9
for Browning - High Power
for Canik - S120, P120, TP9, TP9SF
for Colt - 2000, 1911
for CZ - P-07, P-09, P-10, 2075 RAMI, All models of: 75, 85, SP-01, SHADOW | 9mm & .40S&W
for FN - 509, FNS, FNX | 9mm & .40S&W
for Glock - 42, 43
for HK - USP
for IMI - Baby Eagle
for IWI - Jericho
for Keltec - 9mm & 40
for Mossberg - MC2c
for Star - 28, 30, 31
for S&W - All series: 58,59, 99, 69 Sigma, M&P 9mm & 40, SD9, SD40, SHIELD .45ACP
for Sig Sauer - 2022, P226, P228, P229, P250, P320, P365 | 9mm & .40S&W
for SCCY - CPX-1, CPX-2, CPX-3, DVG-1
for Springfield - HELLCAT, HS2000, XD, XDS, XDM, XD40 | 9mm & .40S&W
for Steyr - Mod. M, Mod. 9
for Taurus - G3, G2C, PT92, PT111, PT917, TH9, TH40, Slim 9mm & .40ACP
for Ruger - All models of: American, SR9, SR40, Security 9
for Walther - PPQ, PPQ M2, P99