SIG Sauer P365X 9mm Pistol 3.7" Barrel 17rd Optics Ready Black

The SIG Sauer P365X delivers full-size capacity in a compact frame, addressing the common compromise between concealability and firepower. This optics-ready variant features a 3.7-inch barrel and ships with a 17-round magazine, providing serious stopping power in a package designed for everyday carry.

What Makes This Different

The P365X bridges the gap between the standard P365 and full-size pistols with its extended grip module that accommodates higher-capacity magazines without sacrificing concealability. The factory-installed optics cut accepts popular micro red dots like the Romeo Zero, while the flat trigger provides a consistent break compared to curved alternatives. SIG's proprietary magazine design achieves 17+1 capacity in a grip no larger than many 10-round competitors.

Key Features

• 17-round flush-fit magazine capacity with 10-round option available
• Factory optics cut compatible with Romeo Zero and Shield RMSc footprint
• 3.7-inch stainless steel barrel with Nitron finish for corrosion resistance
• XRAY3 day/night sights with tritium front sight insert
• Flat trigger with 90-degree break and tactile reset
• Striker-fired action with integrated safety systems
• Compatible with standard P365 holsters and accessories

Range testing consistently shows sub-3-inch groups at 25 yards with quality ammunition, while the extended sight radius improves accuracy over the standard P365. The pistol functions reliably with both 115-grain and 147-grain loads, cycling hollow points and ball ammunition without modification. Law enforcement agencies have adopted the platform for off-duty carry, and competitive shooters appreciate the balance between size and shootability for IDPA Compact Carry Pistol division.

Technical Specs

• Caliber: 9mm Luger
• Barrel Length: 3.7 inches
• Overall Length: 6.6 inches
• Height: 4.8 inches
• Width: 1.1 inches
• Weight: 20.7 ounces (unloaded)
• Magazine Capacity: 17 rounds (flush fit)
• Frame Material: Polymer with stainless steel chassis
• Slide Finish: Nitron black
• Country of Origin: USA

The P365X represents SIG's refinement of the micro-compact category, offering measurable advantages in capacity and accuracy without the bulk penalties of traditional compact pistols. Current production models include the optics cut as standard equipment, eliminating the need for aftermarket modifications.