This factory magazine comes standard with the 21-round P365-FUSE model. The 21-round magazine will also work with all 9mm P365 models including the standard, X, XL, XMACRO, and AXG-LEGION. This steel magazine includes rear witness holes to confirm loaded capacity, an orange follower making it easy to identify when unloaded, and a coyote tan baseplate. Compatible with all 9mm P635 Models including: P365 Standard P365X P365-XL P365-XMACRO models P365-AXG LEGION P365-FUSE