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The SIG Sauer P320 XFull is a striker-fired 9mm Luger semi-automatic. It doesn’t include a reflex optic but has a rear-plate slide cut so it’s ready for either Romeo1PRO or Delta Point Pro optics. And it comes standard with high-visibility XRAY3 day/night sights.

The P320 XFull features a Nitron-finished stainless-steel slide and a matte black polymer grip module. Nitron is SIG’s name for its PVD (physical vapor deposition) finish. It looks great and makes any gun corrosion resistant and more durable.

The P320 XFull has an XCarry Polymer Medium grip module! It has a lateral beavertail and a three-slot Picatinny accessory rail under the muzzle. Its trigger is a flat XSeries Straight trigger. The XSeries trigger allows for a lower finger position thus providing more refined control and a smoother pull compared to similar curved triggers.

XFull’s 6-groove 1:10” twist 4.7” carbon steel barrel sits in a long stainless-steel slide that gives the gun an 8.2” overall length. It is 5.5” tall, 1.3” wide and weighs 29.6 ounces. Regarding magazines, the P320 XFull’s choices are either two 17-round magazines or two 10-round magazines.

SIG P320 Xs showcase thoughtful ergonomics and well-done tactile surfaces. For instance, the slides have forward-leaning grip serrations on both front and back. You also get excellent non-slip grip texturizing and serrated surfaces for all the levers and other key moving touchpoints.

The P320 XFull’s magazine release can be reversed for either left-hand or right-hand use. And for more safety, P320s feature a Loaded Chamber Indicator (LCI), striker safety and a disconnect safety. Integrated in the grip module is the combat trigger guard. It has horizontal serrations and gentle concave surface and a deep undercut at back.

SIG Sauer makes its P320 XFull semi-automatics in Newington, New Hampshire.

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