Selected Handgun Detail

SIG
Model 1911 XO (Revolution)
SIG Pistol 1911 XO (Revolution) .45 Auto Variant-1
Scale To:
Gun Dimensions Width:1.37-in
Length:8.65-in Height:5.5-in
Barrel:5-in Weight:41-oz
1 Variant
Gun Rankings
  • Power Factor (230 grain bullet)195500
  • Recoil Factor (230 grain bullet)6.5 ft-lb
  • Total Capacity9 rounds
  • ConcealabilityFair
  • Defense Factor79%
Gun Specifications
Type:Pistol
Caliber:.45 Auto
Action:recoil operated semi-automatic
Trigger:single-action (SA)
Safety:grip safety, manual thumb safety
Magazine:8-round
Frame:stainless steel
Grip:Ergogrip XT polymer
Sights:high contrast combat
Notes:Nitron finish
Manufacturer
SIG SAUER GmbH & Co. KG
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About the Gun

Originally named the GSR (Granite Series Rail) and then later referred to as the Revolution Series, these models are now simply known as the SIG 1911 Series. This is SIG's own version of Browning's classic 1911 platform manufactured in Exeter, New Hampshire. Originally only produced with an integral accessory rail (as the term GSR implied), both standard and rail models are now offered.

Production

Production of this specific model began in 2007 and continued until around 2015. During this period, it was manufactured with a focus on durability and precision, reflecting the high standards of its era.

Market value
Last updated: 7/10/2025

The MSRP for this gun is approximately $1,099. Used market value in 95% condition is around $800-$900, based on recent 2024-2025 data from online marketplaces and pricing guides.

Cartridge Specifications
Cartridge: .45 Automatic
Alias: .45 Automatic Colt Pistol (ACP)
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Ballistics for This Gun
Selected Bullet Mass:230 grains
MV:850 ft/sec ME:369 ft-lbs
Analysis

This .45 Auto pistol offers a robust design tailored for shooters seeking precision and dependability. Its accuracy is commendable, delivering consistent groupings at typical defensive ranges, thanks to a well-engineered barrel and sight system. Ergonomically, the grip provides a secure hold, accommodating various hand sizes with textured panels for enhanced control. Reliability is a strong suit, as it cycles smoothly through a variety of ammunition without frequent malfunctions. However, maintenance can be somewhat demanding, requiring meticulous attention to keep it in optimal condition. Availability of replacement parts may pose challenges for some users, potentially leading to delays in repairs. The trigger pull is crisp, averaging around 4.5 pounds, which aids in precise shot placement. Felt recoil is moderate for the caliber, manageable for experienced shooters but possibly stout for novices, necessitating proper technique to maintain control during rapid fire.

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