SIG Sauer P320/P250 Caliber X-Change Kit

posted on June 10, 2016

Many years ago, I picked up a SIG Sauer P250 in .45 ACP. At the time, as a resident of Massachusetts subject to the vagaries of the "Approved Handgun Roster," it was the only compact, polymer-frame .45 ACP available. The modular nature intrigued me, and I picked up a sub-compact frame, slide and barrel to investigate as well.

Flash forward to the introduction of the P320, and the same modular assembly-system is in use for the striker-fired variant. Sure enough, SIG was clever enough to offer the same mix of frames, slides and barrels for the P320 as they did for the P250; in fact, the frames are interchangeable. Owing to geometry in the slide with regard to striker vs. hammer, the X-Change kits themselves are not interchangeable between the P250 and P320, however.

The Caliber X-Change Kit shown changes a compact or sub-compact P250 of any caliber into a full-size pistol. Whether a 6-round, .45 ACP sub-compact or a 13-round, .40 S&W compact model, with this kit it transforms into a 17-round handgun suitable for competition, duty or just higher-capacity daily carry.

MSRP: $399.


handgun facing right against ammunition box
handgun facing right against ammunition box

Review: Diamondback DB9SL Handgun

Richard Mann takes an in-depth look at the Diamondback DB9SL chambered in 9 mm. 

First Look: Viridian HS1 Hand Stop Laser

Viridian Weapon Technologies is rolling out a game-changing hand stop laser, the HS1, which is now available with an infrared beam.

6 Great Hard-Sided Pistol Cases

Whether you're traveling, riding in a vehicle, or simply want a sturdier case for around the house, here's a look at six great hard-sided pistol cases. 

First Look: MasterPiece Arms MPA DS40 TT Competition Pistol

MasterPiece Arms (MPA) is rolling out the new MPA DS40 Travis Tomasie (TT) Competition Pistol.

First Look: Mission First Tactical Extreme Duty Polymer Magazine

Mission First Tactical introducing the MFT Extreme Duty Polymer Magazine for the 7.62 NATO round, available in a 10-round option.

Review: Tisas PX-9 Gen 2 Pistol

The Wonder Nine gets reimagined with a new 9 mm from SDS Imports.


Get the best of Shooting Illustrated delivered to your inbox.