Sig Sauer P320 Compact 45 ACP – Potent Carry Pistol

Description

The Sig Sauer P320 Compact 45 ACP is an unusual gun and an increasingly hard one to find. MAG5 Firearms stocks this configuration with a 3.9-inch barrel, a Nitron stainless slide, a Picatinny rail and nine rounds of 45 ACP on the modular P320 chassis that made the platform a standard.

Why a Striker-Fired 45 Is Worth Attention

Forty-five ACP has traditionally lived in 1911s and hammer-fired service pistols. A striker-fired 45 gives you a consistent trigger from the first shot to the last with no decocker, no double-action transition and nothing to sweep off on the draw.

The Sig Sauer P320 Compact 45 ACP pairs that simplicity with a cartridge that does its work through bullet diameter and mass rather than velocity, which means it performs the same out of a short barrel as it does out of a long one.

Compact Size With Full-Size Terminal Performance

A 3.9-inch barrel keeps this pistol inside the dimensions a good inside-the-waistband holster can manage, and 45 ACP loses almost nothing to the shorter tube because it was never a velocity-dependent cartridge.

That combination is rarer than it should be. Most 45s in this size class are considerably thicker or considerably heavier than the Sig Sauer P320 Compact 45 ACP.

Sig Sauer P320 Compact 45 ACP Specifications

Sig Sauer P320 Compact 45 ACP Handling and Recoil

The low bore axis SIG builds into the P320 chassis matters more with 45 ACP than with 9mm, because there is more energy trying to rotate the gun. Recoil arrives as a firm push rather than a sharp snap.

Nine rounds of 45 in a compact frame is respectable capacity for the cartridge, and the grip stays narrow enough to conceal despite the larger case head.

Rail, Sights and Setup

A Picatinny rail on the dust cover takes a compact weapon light, which makes this a usable home defense gun as well as a carry pistol.

Night sights are a common first upgrade on this model and install without gunsmithing. Holsters cut for the P320 compact frame fit regardless of caliber.

Modularity and Availability

The serialized part is the fire control unit rather than the frame or slide, so the platform can change size later. Note that caliber conversions between 45 ACP and the 9mm family require the matching chassis size.

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

Other Sig Sauer P320 Compact 45 ACP configurations and 45 ACP handguns are listed in our handgun catalog. Factory specifications are published by SIG SAUER.

Every Sig Sauer P320 Compact 45 ACP 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 Compact 45 ACP is a regulated firearm and we verify licensing before any order leaves the shop.