Shop › SHIELD MAG EXT +5/4 FOR GLK17/22 ODA SHIELD MAG EXT +5/4 FOR GLK17/22 ODA $35.99 Shield Arms +5/+4 Magazine Extension, Aluminum, Anodized Finish, Operational Detachment Alpha Green, Fits Glock 17/22 G17-ME-5-ODA Quantity: Add To Cart Added! Shield Arms +5/+4 Magazine Extension, Aluminum, Anodized Finish, Operational Detachment Alpha Green, Fits Glock 17/22 G17-ME-5-ODA