Shop › ETS MAG FOR GLK 21/30 45ACP 30RD CSM ETS MAG FOR GLK 21/30 45ACP 30RD CSM $16.00 Elite Tactical Systems Group Magazine, 45 ACP, 30 Rounds, Fits Glock 21/30/41, Carbon Smoke SMK-GLK-21-30 Quantity: Add To Cart Added! Elite Tactical Systems Group Magazine, 45 ACP, 30 Rounds, Fits Glock 21/30/41, Carbon Smoke SMK-GLK-21-30