Manufactured in Austria by Glock. The Genuine Factory Glock 10 round magazine for Glock 21 in 45ACP. These will fit your AR45 pistol build. We only sell what we trust. The smooth and reliable feeding from the Glock mags make it easy for us to choose them as our Spectre pistol builds kit. Manufactured in Austria by Glock.
Featuring a round count indicator on the back of the magazine so you’ll know your current round count. The standard base plate that will allow you to take the magazine apart and clean or release tension on the spring as you see fit. Glock makes there magazines with very stiff springs, making it possibly difficult to load the magazine to full potential for the first couple cycles. After it has been cycled a few times it will become easier to load.