Glock 17 gen 4 full size July 8, 2019 16 32 64 128 Glock 17 gen 4 size Glock 17 gen 4 mag size Glock 17 gen 4 bullet size Glock 17 gen 4 rail size Glock 17 gen 4 barrel size Glock 17 gen 4 magazine size Glock 17 gen 4 shoot Glock 17 gen 4 shooting Glock 17 gen 4 bb gun Glock 17 4.5 mm Glock 17 gen 5 vs gen 4
