This is a factory .40 S&W 14-round magazine for use with Px4 pistols and some Cx4 carbines.
Keep your Px4 Storm at the ready and running at peak efficiency with these factory replacement/spare magazines.
Packing 14 rounds of .40 S&W, these magazines give you high capacity while still fitting flush in the gun. They’re also compatible with .40 S&W Cx4 carbines (with Px4 magazine well insert/release), and .40 S&W Px4 Storm Compacts & Sub-compacts (extends below base of grip).
Make sure you have enough magazines to rotate regularly (every 3-6 months) and always have a spare!