Factory SIG Sauer 21-round extended magazine for 9mm SIG P365 pistols. Designed to fit the P365 series including the XMACRO and other compatible 9mm P365 variants, it includes rear witness holes to confirm capacity, an orange follower for quick unloaded indication, and a black baseplate.

Key features

• 21-round extended capacity for SIG P365 9mm pistols
• Rear witness holes help confirm loaded capacity at a glance
• Orange follower makes it easier to identify when the magazine is unloaded
• Black baseplate for a factory appearance

A reliable OEM magazine option for consistent carry and range use with your 9mm P365.