such as the AR9 PCC

one of which weighs the same as an empty Glock 17 magazine and the second as a full Glock 17 magazine

IPSC backpack "Edge Backpack" from CED

The sides are coated with a non-slip

These magazine bases also fit in conjunction with a magazine funnel

GP Stribog AR15 Schaft Adapter PCC such as the AR9 PCCAR15 Stock Adapter for the Grand Power Stribog This adapter allows you to equip the Grand Power Stribog with an AR 15 stock. Simply remove the original butt plate or folding stock and insert this AR stock adapter in its place. Please note that an AR 15 buffer tube, a locking castle nut, and of course an AR15 stock are still required to complete the conversion. OEM part number: 43003267