Sig Sauer GSR 1911 .45 ACP Full-Size Stainless with Granite Series Rail, 5-inch Barrel, USA Production, 2 Mags
This Sig Sauer GSR is a full-size, stainless-steel 1911 in .45 ACP built during the SIGARMS era in Exeter, NH, indicating pre-2007 U.S. production. It features the Granite Series Rail with an integral three-slot accessory rail, a 5-inch stainless barrel, and the SIG-profile squared slide with front and rear cocking serrations. Practical upgrades include textured synthetic grips installed, with a spare set of checkered wood panels included, plus two 8-round magazines marked by respected makers.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Mechanically solid. The stainless steel finish shows scattered surface scratches and cosmetic blemishes while remaining structurally sound.
What’s Included
- Sig Sauer GSR .45 ACP pistol
- 2x 8-round magazines (marked Chip McCormick Custom LLC Power Mag and Novak's by ACT-MAG, Made in Italy)
- Aftermarket textured synthetic grip panels (installed; brand not visible)
- Spare checkered wood 1911 grip panels (loose)
Built on Sig Sauer's Granite Series Rail frame, this GSR integrates a three-slot Picatinny-type accessory rail for mounting lights or other compatible gear. The full-size configuration uses a standard 1911 bushing-barrel system with a GI-style recoil setup and checkered plug, delivering classic 1911 handling with SIG's squared slide profile.
The stainless-steel slide and frame pair with a 5-inch stainless barrel, offering durability and a clean, uniform stainless finish. Front and rear cocking serrations provide positive manipulation, and fixed, dovetailed 3-dot sights offer a straightforward sight picture.
Controls include an ambidextrous thumb safety and a beavertail grip safety with a memory pad. A skeletonized three-hole trigger and a commander-style skeletonized hammer round out the familiar 1911 feature set. The pistol is a single-action, locked-breech semiautomatic with an 8+1 capacity.
This example carries the SIGARMS rollmark, identifying pre-2007 U.S. manufacture in Exeter, New Hampshire. Era-correct details and the rail-equipped frame place it squarely in the 2000s GSR lineup while maintaining standard 1911 compatibility.
Installed aftermarket textured synthetic grip panels provide a secure hold, and a spare set of checkered wood grips is included for an alternative look and feel. Two quality 8-round magazines are included, marked by Chip McCormick Custom LLC and Novak's (ACT-MAG, Italy).



