SIG SAUER 1911 STX Massachusetts Compliant — Description

The SIG SAUER 1911 STX Massachusetts Compliant is a full-size .45 ACP single-action-only (SAO) semi-automatic pistol that combines classic 1911 design with SIG Sauer’s precision manufacturing and modern performance enhancements. Built for target shooting, competition-style use, and 1911 enthusiasts, the STX features a match-grade barrel, premium controls, and an enhanced ergonomic design. The Massachusetts-compliant version is configured to meet state requirements and is listed among approved SIG Sauer 1911 models for Massachusetts.

The STX features a 5-inch stainless steel barrel, stainless steel slide, aluminum frame, and a distinctive two-tone finish. It includes SIGLITE night sights, an adjustable rear sight, ambidextrous thumb safety, beavertail grip safety, and custom wood grips. The pistol’s single-action trigger system provides a crisp, consistent trigger pull typical of a traditional 1911 platform.

Designed with a focus on accuracy and handling, the 1911 STX includes front and rear slide serrations, checkered front strap treatment, and a polished feed ramp for reliable cycling. The Massachusetts-compliant configuration typically incorporates required state-specific features while maintaining the STX’s performance-oriented design.

SIG SAUER 1911 STX Massachusetts Compliant — Specifications

Manufacturer: SIG SAUER
Model: 1911 STX MA Compliant
Caliber: .45 ACP
Action: Single-action only (SAO)
Operating System: Short recoil, locked breech
Frame Material: Aluminum alloy
Slide Material: Stainless steel
Finish: Two-tone stainless/Nitron-style finish
Barrel Length: 5.0 inches
Barrel Type: Match-grade barrel
Overall Length: Approx. 8.7 inches
Overall Height: Approx. 5.5 inches
Overall Width: Approx. 1.4 inches
Weight: Approx. 39–41 oz (configuration dependent)
Magazine Capacity: 8 rounds
Magazine Type: Single-stack detachable magazine
Trigger System: Match single-action trigger
Sights: SIGLITE night sights with adjustable rear sight
Grips: Custom wood grips
Safety Features:

• Ambidextrous manual thumb safety
• Beavertail grip safety
• Firing pin safety
• Massachusetts-compliant features (configuration dependent)
  Accessory Rail: No integrated rail

Key Features

• Massachusetts-compliant 1911 configuration
• Classic .45 ACP full-size 1911 platform
• 5-inch match-grade barrel
• Single-action trigger system
• SIGLITE night sights
• Adjustable rear sight
• Ambidextrous thumb safety
• Beavertail grip safety
• Custom wood grips
• Stainless steel slide construction
• Front and rear slide serrations
• Traditional 1911 ergonomics
• Precision-oriented design for range and competition use

Package typically includes:

• SIG SAUER 1911 STX Massachusetts Compliant pistol
• 8-round magazines (quantity may vary by package)
• Hard case
• Cable lock
• Owner’s manual and safety documentation