Optics ready plates for Sig P320

The Sig P320 is a modular striker-fired pistol with a factory optics cut — the P320 XFULL, XCARRY, and X5 are the main competition variants. The cut accepts standard plates for a range of red dot footprints. The P320 is widely used in Production, Standard, and Open competition.

Running a red dot low on the slide means you find the dot quickly and track it through the shot with both eyes open, rather than aligning two iron sights under time pressure. The plate is what turns the Sig P320 into an optic-ready gun: it fills the mounting interface and presents the exact footprint your red dot needs, so the optic sits flat and stays put under recoil.

Two dimensions have to line up — the cut or rail on the Sig P320 and the footprint of the optic you intend to run. A few plates include an integrated rear sight to preserve a co-witness backup. Check both against your setup on the individual product page before ordering.