The Kimber KHX Custom (OI) is a full-size 1911 in .45 ACP with a 5-inch match-grade barrel, stainless steel frame and slide with matte finish, and G-10 grips. It ships optics-ready with an included Holosun HE507C-GR-X2 mount, which positions it as a carry or competition pistol rather than a stock range gun. 
 

Key Specifications 

• Manufacturer: Kimber America 
• Model: KHX CUSTOM (OI) 
• Action: Semi-Automatic 
• Type: 1911 
• Size: Full Size 
• Caliber: .45 ACP 
• Barrel Length: 5" 
• Color: Black 
• Grips: G-10 
• Capacity: 8 Rounds 
• Type of Barrel: Match Grade 
• Safety: Manual Safety 
• Sights: Optics Ready 
• Material: Stainless Steel 
• Finish: Matte 
   
  The match-grade barrel delivers the accuracy you'd expect from a purpose-built competition 1911. G-10 grips give reliable traction across different hand sizes and weather conditions. The manual safety is the traditional 1911 configuration, no ambidextrous thumb safety listed, so left-handed shooters should note that. The 8-round capacity is standard for a .45 ACP 1911 in this configuration.

The Kimber KHX Custom in .45 ACP draws a consistent split in owner feedback: people who prioritize fit, finish, and out-of-the-box accuracy are generally satisfied, while those focused on value-per-dollar have more reservations.

The fit and finish get mentioned in nearly every positive review. The pistol feels solid and the tolerances are tight. The optics-ready mount with the included Holosun HE507C-GR-X2 is a practical addition that saves the buyer a separate purchase. Accuracy reports are good, with shooters noting tight groups at range distances typical for a .45 ACP pistol.

On the critical side, price is the dominant theme. Some reviewers question whether the cost is warranted given alternatives at lower price points with comparable reliability. A few buyers have reported feeding issues with certain ammunition types, and magazine capacity at 8 rounds is standard for the platform but draws comment from those used to higher-capacity pistols. The handling characteristics favor shooters already familiar with 1911s; newer shooters may find the manual safety and grip angle require adjustment time.