Availability: In Stock
The Sig Sauer 1911XR-45-SS is a modern take on the full-size 1911 platform built for shooters who want classic lines with contemporary optics capability. Chambered in 45 ACP with an 8+1 capacity, this stainless steel 1911 strips away nostalgia and adds practical upgrades: an optic-ready slide milled for compact direct-mount red dot sights, XRAY3 day/night sights for low-light performance, and a railed stainless frame ready for tactical accessories. Whether you're a dedicated 1911 enthusiast looking to modernize your carry gun or a competitive shooter seeking reliable .45 ACP performance with optics flexibility, the XR-45-SS delivers proven ergonomics and updated fighting features in a 5-inch barrel platform.
Sig engineered this pistol around real-world carry and duty expectations. The stainless bead-blast finish resists corrosion, the flat serrated trigger offers crisp, consistent breaks, and custom G10 grips from LOK provide confident purchase in any condition. An ambidextrous thumb safety, extended slide release, and undercut triggerguard (beavertail) round out the ergonomic package. You get two 8-round steel magazines and a compact optic footprint rated for Shield RMS-c class mounts—keeping your profile low while delivering the sight-picture advantages of a red dot.
The 5-inch carbon-steel barrel with DLC finish pairs with a 6.5-inch sight radius, balancing accuracy and speed for defensive work. At 42.1 ounces loaded, the XR-45-SS sits in the sweet spot for all-day carry without sacrificing .45 ACP terminal ballistics. This is a 1911 for the shooter who respects tradition but refuses to compromise on modern capability.
| Caliber | 45 ACP |
| Capacity | 8+1 |
| Barrel Length | 5 inches |
| Barrel Material | Carbon steel with black DLC finish |
| Slide Material | Stainless steel |
| Slide Finish | Stainless bead blast |
| Frame Material | Stainless steel |
| Frame Finish | Stainless bead blast |
| Trigger Action | Single action only (SAO) |
| Trigger Type | Black serrated flat trigger |
| Sights | P-Series XRAY3 day/night sights |
| Optic Ready | Yes (compact footprint) |
| Optic Footprint | Shield RMS-c compatible |
| Sight Radius | 6.5 inches |
| Grip Type | Custom G10 LOK grips, black |
| Safety | Ambidextrous thumb safety |
| Accessory Rail | M1913 Picatinny |
| Magazines Included | (2) 8-round steel magazines |
| Overall Length | 8.7 inches |
| Overall Width | 1.4 inches |
| Height | 5.6 inches |
| Weight (with magazine) | 42.1 ounces |
| Threaded Barrel | No |
| Optic Installed | No |
The slide is milled and optic-ready for compact direct-mount red dots using the Shield RMS-c footprint. This includes optics like the Sig Romeo Zero, Holosun HS407K/HS507K series, and similar compact enclosed-emitter designs. The stainless optic sight plate is included; no additional mounting hardware is needed for compatible sights.
Yes. At 42.1 ounces loaded and 8.7 inches overall length, this full-size 1911 can be carried concealed by shooters comfortable with that weight and footprint. The stainless construction adds durability for daily carry, and the ambidextrous safety and ergonomic grip panels support draw and manipulation from strong or support hand.
Yes. The M1913 Picatinny rail built into the stainless steel frame accepts tactical lights and lasers rated for 1911 platforms.
The XR-45-SS comes with two 8-round steel magazines.
SKU: 198467095 • Weight: 4.24oz
Availability: In Stock
The Sig Sauer 1911XR-45-SS is a modern take on the full-size 1911 platform built for shooters who want classic lines with contemporary optics capability. Chambered in 45 ACP with an 8+1 capacity, this stainless steel 1911 strips away nostalgia and adds practical upgrades: an optic-ready slide milled for compact direct-mount red dot sights, XRAY3 day/night sights for low-light performance, and a railed stainless frame ready for tactical accessories. Whether you're a dedicated 1911 enthusiast looking to modernize your carry gun or a competitive shooter seeking reliable .45 ACP performance with optics flexibility, the XR-45-SS delivers proven ergonomics and updated fighting features in a 5-inch barrel platform.
Sig engineered this pistol around real-world carry and duty expectations. The stainless bead-blast finish resists corrosion, the flat serrated trigger offers crisp, consistent breaks, and custom G10 grips from LOK provide confident purchase in any condition. An ambidextrous thumb safety, extended slide release, and undercut triggerguard (beavertail) round out the ergonomic package. You get two 8-round steel magazines and a compact optic footprint rated for Shield RMS-c class mounts—keeping your profile low while delivering the sight-picture advantages of a red dot.
The 5-inch carbon-steel barrel with DLC finish pairs with a 6.5-inch sight radius, balancing accuracy and speed for defensive work. At 42.1 ounces loaded, the XR-45-SS sits in the sweet spot for all-day carry without sacrificing .45 ACP terminal ballistics. This is a 1911 for the shooter who respects tradition but refuses to compromise on modern capability.
| Caliber | 45 ACP |
| Capacity | 8+1 |
| Barrel Length | 5 inches |
| Barrel Material | Carbon steel with black DLC finish |
| Slide Material | Stainless steel |
| Slide Finish | Stainless bead blast |
| Frame Material | Stainless steel |
| Frame Finish | Stainless bead blast |
| Trigger Action | Single action only (SAO) |
| Trigger Type | Black serrated flat trigger |
| Sights | P-Series XRAY3 day/night sights |
| Optic Ready | Yes (compact footprint) |
| Optic Footprint | Shield RMS-c compatible |
| Sight Radius | 6.5 inches |
| Grip Type | Custom G10 LOK grips, black |
| Safety | Ambidextrous thumb safety |
| Accessory Rail | M1913 Picatinny |
| Magazines Included | (2) 8-round steel magazines |
| Overall Length | 8.7 inches |
| Overall Width | 1.4 inches |
| Height | 5.6 inches |
| Weight (with magazine) | 42.1 ounces |
| Threaded Barrel | No |
| Optic Installed | No |
The slide is milled and optic-ready for compact direct-mount red dots using the Shield RMS-c footprint. This includes optics like the Sig Romeo Zero, Holosun HS407K/HS507K series, and similar compact enclosed-emitter designs. The stainless optic sight plate is included; no additional mounting hardware is needed for compatible sights.
Yes. At 42.1 ounces loaded and 8.7 inches overall length, this full-size 1911 can be carried concealed by shooters comfortable with that weight and footprint. The stainless construction adds durability for daily carry, and the ambidextrous safety and ergonomic grip panels support draw and manipulation from strong or support hand.
Yes. The M1913 Picatinny rail built into the stainless steel frame accepts tactical lights and lasers rated for 1911 platforms.
The XR-45-SS comes with two 8-round steel magazines.
SKU: 198467095 • Weight: 4.24oz