MAGPUL AMAG 10 SG9 9MM SIG P365 SST

Description

The Magpul AMAG is a purpose-built replacement magazine for the standard SIG P365, designed for shooters who want a more durable feeding solution without changing the pistol’s concealable profile. It is not compatible with the P365X, P365XL, X-Macro, AXG Legion, Fuse, or Flux — fit is specific to the original P365 frame.

The body is machined from corrosion-resistant stainless steel, which holds up better over time than polymer-bodied magazines when exposed to sweat, moisture, and the friction of repeated draw cycles. The stainless spring is built for long service life, maintaining consistent follower pressure across the full range of the magazine’s capacity. The anti-tilt polymer follower keeps rounds aligned correctly as the spring compresses, reducing the likelihood of a misfeed caused by follower canting under a sharp-shouldered hollow point.

Witness holes are precision-cut into the rear of the body in a numbered sequence, so a glance tells you exactly how many rounds remain without stripping the magazine. The floorplate is flared to make seating and ripping the magazine faster under stress, and it is removable for cleaning or replacement. Magpul includes two interchangeable floorplates — one sized for standard P365 frames and one for Micro frames — so the same magazine works correctly with either grip configuration. A dot matrix field on the base allows marking with a paint pen for round-count or ownership identification.

At ten rounds, this magazine maintains the P365’s original flush-fit geometry, keeping nothing hanging below the grip that would compromise a concealment rig.