Sig Sauer P320 SXG Reserve 21 Round – Exquisite 9mm

Description

The Sig Sauer P320 SXG Reserve 21 Round comes out of SIG Custom Works with a high-polished DLC finish over a stainless grip frame, which is not a combination the standard production line offers. MAG5 Firearms stocks it with a 3.9-inch barrel, LOK alloy grip panels, an optic-ready slide and twenty-one rounds on board.

The Stainless Grip Frame

SXG stands for stainless grip. Replacing the polymer module with machined steel puts real weight low in the hand, which lowers the center of gravity and stops the pistol rotating under recoil far more effectively than anything done above the trigger.

On the Sig Sauer P320 SXG Reserve 21 Round that produces a striker-fired gun that handles like an all-metal pistol, because functionally it is one.

High Polished DLC

Diamond-like carbon is a hard, low-friction film bonded to the steel rather than a coating sitting on top of it. Polished, it produces a deep black with a mirror surface that most finishes cannot achieve at this hardness.

It is also genuinely durable. The Sig Sauer P320 SXG Reserve 21 Round resists holster abrasion and corrosion far better than bluing, which is unusual for a finish this decorative.

Sig Sauer P320 SXG Reserve 21 Round Specifications

LOK Alloy Grip Panels

LOK panels are what a lot of shooters install on their own guns. The texture locks the hand in place without abrading a cover garment, and alloy holds it indefinitely.

On a pistol this heavy, grip security matters more than it does on a light polymer gun, because there is more mass to control under recoil.

Sig Sauer P320 SXG Reserve 21 Round Optic Cut and Capacity

The slide arrives cut for a red dot, so an optic mounts directly with no plate and no gunsmithing. Given how flat this pistol tracks, a dot stays in the window through an entire string of fire.

Twenty-one rounds is the full-size P320 magazine, and those magazines are among the most widely produced pistol magazines in the country.

Custom Works Production and Transfer

SIG Custom Works runs are limited and cannot be reordered once a shipment sells through, which is why these pistols tend to hold value better than standard production guns.

MAG5 Firearms is a licensed FFL dealer in Pennsylvania. This pistol ships new in the factory case with magazines and documentation, transferred through your local FFL.

Other Sig Sauer P320 SXG Reserve 21 Round configurations and metal-framed pistols are listed in our handgun catalog. Factory specifications are published by SIG SAUER.

Every Sig Sauer P320 SXG Reserve 21 Round sold by MAG5 Firearms ships new in the factory packaging with the accessories SIG SAUER includes, and transfers to your chosen FFL. The Sig Sauer P320 SXG Reserve 21 Round is a regulated firearm and we verify licensing before any order leaves the shop.

Ownership Tips

Before your first range trip, read the owner’s manual and practice loading, unloading, and field-stripping with an empty gun. Clean and lightly lubricate the pistol after each session, paying attention to the slide rails, barrel hood, and breech face, and use quality gun oil sparingly. Inspect magazines for dirt and weak springs, and replace springs on a regular schedule if you carry the gun daily.

For carry or home defense, test the ammunition you plan to rely on with at least a few boxes to confirm reliable feeding. A quality holster that covers the trigger guard, a sturdy belt, and a weapon light round out a dependable setup. Check your state and local rules on magazine capacity and transport before ordering, and we will ship to the licensed dealer of your choice.