A 15 pack of 5.56x45mm polymer stripper clips, holding 10 rounds per strip.
These clips are manufactured by are manufactured by General Dynamics Ordnance and Tactical Systems Inc as found in Canadian Armed Forces 5.56 x 45 mm NATO boxes.
Stripper clips are a fast way to stow ammunition, which can then be loaded into magazines in seconds using compact loaders such as the Cromag Magripper.
Lightweight and corrosion free they can be used many times.