SIG SAUER P365X Massachusetts-Compliant 9mm Pistol

SIG SAUER P365X 9mm Massachusetts-Compliant Pistol

The SIG SAUER P365X combines the compact slide and 3.1-inch barrel of the P365 platform with the longer XSeries grip module. This listing is for manufacturer part number 365X-9-BXR3P-MS-MA, identified by UPC 798681730179. It is the Massachusetts-compliant 9mm configuration with a manual safety, 10+1 capacity, optics-ready Nitron slide, XRAY3 day/night sights, XSeries flat trigger, and two 10-round steel magazines.

The P365X format is intended for shooters who want a compact pistol while preferring the fuller hand contact and control offered by the extended XSeries grip. Its overall dimensions remain suited to concealed carry and everyday transport, yet the grip provides additional surface area compared with the shortest P365 configuration. The integrated carry magwell helps guide magazine insertion without adding a bulky competition-style flare.

Compact 3.1-Inch Barrel and Optics-Ready Slide

The pistol uses a 3.1-inch black-finished barrel and a black Nitron stainless-steel slide. Front and rear slide serrations provide textured areas for normal administrative handling. The slide is cut for a compatible compact reflex sight, allowing the owner to add an optic without replacing the factory slide. Buyers should confirm the required footprint, screws, and mounting specifications for the intended sight before installation.

XRAY3 day/night sights remain installed as the factory sighting system. Their high-visibility front arrangement supports daytime acquisition, while the night-sight elements provide useful reference points in reduced light. The rear sight stays in a dovetail configuration rather than being integrated into a removable optic plate, preserving a conventional backup sight setup when a compatible optic is installed.

XSeries Grip and Flat Trigger

The black polymer XSeries grip module includes an extended beavertail and accessory rail. The beavertail helps establish a consistent high grip, while the rail accepts compatible compact lights or other properly fitted accessories. Grip texture and contour are designed to provide control without changing the pistol’s streamlined carry-oriented profile.

SIG equips this configuration with the XSeries flat trigger, designed with a approximately 90-degree break. A flat trigger face provides a consistent contact surface, and the striker-fired action gives the shooter a uniform trigger system from shot to shot. As with any defensive handgun, trigger feel and safe operation should be evaluated through supervised practice before the pistol is carried.

Manual Safety and Massachusetts Configuration

This model includes a manual thumb safety and is specifically cataloged as Massachusetts compliant. The safety provides a positive external control in addition to the pistol’s internal safety systems. Owners should become familiar with its direction of movement and incorporate it into safe handling and practice routines. The pistol should always be treated as loaded regardless of safety position.

Capacity is 10 rounds in the magazine plus one in the chamber when lawfully and properly loaded. The exact package includes two 10-round steel magazines. This distinguishes the model from standard-capacity P365X variants and makes the manufacturer part number especially important when confirming the correct configuration.

Key Features

• 9mm striker-fired semi-automatic pistol
• Massachusetts-compliant configuration
• 3.1-inch black-finished barrel
• 10+1 capacity
• Two 10-round steel magazines
• Black Nitron stainless-steel slide
• Optics-ready slide cut
• XRAY3 day/night sights
• XSeries flat trigger
• XSeries polymer grip module
• Integrated carry magwell and extended beavertail
• Accessory rail
• Manual thumb safety
• Approximately 6 inches overall length

Designed for Everyday Carry

The P365X balances concealability with shootability by pairing a short slide with the extended XSeries grip. That combination can be attractive to owners who find the smallest micro-compact grips difficult to control but do not want the longer slide of a larger pistol. The optics-ready design and accessory rail also allow the pistol to be configured around the user’s chosen sighting and illumination equipment.

Before purchase, verify that this Massachusetts-compliant configuration meets the laws and requirements applicable to the buyer’s location. Firearms must be transferred and handled in accordance with all federal, state, and local laws. Use only compatible 9mm ammunition and magazines, follow the current SIG SAUER owner documentation, and obtain qualified instruction for safe operation, storage, and maintenance.

Product Identification

• Manufacturer: SIG SAUER
• Model: P365X
• Manufacturer part number: 365X-9-BXR3P-MS-MA
• UPC: 798681730179
• Caliber: 9mm
• Barrel length: 3.1 inches
• Capacity: 10+1
• Finish: Black Nitron