Picatinny Accessory Rail Mount for SecureIt | Gear Holder Storage Rack Color:Black - Perfect Fit: Works with

- Perfect Fit:  Works with HK MP5 9mm / 40 / 10mm metal mags (Zenith

short action LR/SR Pmag magazines

The 22/45 mags have a much longer baseplate

such as M2 / M3 Pmags

If you load this up with 5 Pmags for example

Picatinny Accessory Rail Mount for SecureIt | Gear Holder Storage Rack Color:Black - Perfect Fit: Works withSimple, Secure Mounting: Simply slide the mount onto the louvers using the slots on the back. Note that the fit is intended to be snug, if needed you can use a rubber mallet to lightly tap the mount into place. Compatibility: Standard version is compatible with SecureIt wall panels, Agile safes, Answer safes, Akro Mils panels, and Quantum panels. The Plastic is compatible with plastic SecureIt gun safe panels, which have thicker louvers. Wide