SIG Sauer 1911R TacPac .45 ACP Tactical Custom Pistol

The Teutonic Take on America’s Icon: Match-Grade Precision 

The SIG Sauer 1911R, serial GS37607, famously introduced as part of the specialized "TacPac" (Tactical Package) lineup, represents a highly distinct departure from traditional Mil-Spec 1911 architecture. SIG Sauer engineered this platform by fusing classic John Browning mechanics with modern, high-end production enhancements. Most notably, the 1911R incorporates SIG’s iconic "square-top" slide profile—subtly mimicking the aesthetic lines of the P220/P226 series—alongside an external extractor engineered to deliver ultra-consistent casing ejection under harsh tactical conditions. Built from the ground up on a match-grade stainless steel frame and slide, the "R" variant natively integrated an under-barrel accessory rail. This specific specimen has been professionally elevated from its original factory spec into an incredibly optimized, hard-use tactical tool via premium hardware enhancements from Trijicon, 10-8 Performance, and Wilson Combat.

Condition and Action Highlights

Action: Single-Action Only (SAO) recoil-operated system. The ignition architecture has been premium-upgraded with a 10-8 Performance flat trigger paired with a comprehensive Wilson Combat spring kit tune-up. The flat trigger face shortens the perceived reach and provides identical mechanical leverage regardless of finger placement, resulting in a remarkably crisp, match-grade break and a lightning-fast reset.

Illumination & Optics: Outfitted with premium Trijicon HD Night Sights featuring a high-visibility photoluminescent orange front outline. This sight picture allows for instantaneous front-sight tracking in bright daylight, while the glowing tritium inserts offer flawless target alignment in low-light environments.

Tactical Accessories: Fully equipped with a frame-mounted Streamlight TLR-1 HL weaponlight. Delivering a blistering, wide-beam output of weapon-mounted illumination, the light features a secure dual-rail clamp system that locks perfectly onto the 1911R's integrated dust cover rail.

Condition: Excellent condition; the rugged Nitron finish exhibits minimal wear, showing only light wear on the controls and minimal friction tracking of the safety. The frame checkering remains sharp and free of flattened peaks.

Bore: 5-inch match-grade barrel; the bore is in immaculate condition, bright and mirror-clean with razor-sharp rifling lines capable of extracting maximum accuracy from heavy .45 ACP projectiles.

Magazine Logistics: Includes a total of two (2) premium 8-round magazines configured with extended basepads for secure seating.

Technical Specifications

Manufacturer: SIG Sauer (Newington, NH)

Model: 1911R (TacPac Base Configuration)

Serial Number: GS37607

Caliber: .45 ACP

Capacity: 8+1 Rounds

Barrel Length: 5.0 Inches (Match Grade)

Finish: Matte Black Nitron