We would never disparage the hard work of any of the fine third-party magazine manufacturers out there. But at the end of the day, you just can’t top an original equipment manufacturer (OEM) mag.

That’s why we’re offering this 10-round factory Glock 21 mag (which will also fit a G30) for sale. It’s the real deal: straight out of Austria, and exactly what a G21 would come packaged with if you purchased it brand new in a jurisdiction where “high-capacity” mags aren’t legal.

This magazine comes in two layers. Beneath lies a heat-treated hardened steel insert, which gives the mag great rigidity and resistance to deformation. Above lies the high-tech polymer shell, which protects the insert from impact and remains tough in extreme temperatures.

Within the mag rests a steel spring. It will most likely need breaking in (which we believe is good reason to order .45 Auto ammo from us). The spine of the mag displays a column of witness holes, which tell you how many shots remain upon ejection.

Features and Specifications:
Magazine Capacity: 10
Ammo Caliber: .45 ACP
Firearms Platform: Glock 21/30
Quantity: 1
UPC Barcode: 764503056239