The Kimber Custom II GFO is a full-size 1911-pattern semi-automatic pistol chambered in 10mm. It has a 5-inch barrel, holds 8+1 rounds, and weighs 40 oz (approximately 2.3 lbs). The finish is black matte; sights are a green fiber optic front with white dot rear. 
 

Key Specifications 

• Manufacturer: Kimber 
• Model: Custom II (GFO) 
• Caliber: 10mm 
• Barrel Length: 5 inches 
• Capacity: 8+1 rounds 
• Weight: 40 oz (approximately 2.3 lbs) 
• Finish: Black Matte 
• Sights: Fiber Optic front sight with white rear dots 
• Grip Type: Standard rubber grips 
   

Detailed Features 

• 5-Inch Barrel: Full-length Government configuration. Gives 10mm full velocity and contributes to a long sight radius. 
• Fiber Optic Front Sight / White Dot Rear: The green fiber optic front picks up quickly across lighting conditions; the white dot rear provides a clean contrast for alignment. 
• Rubber Grips: Standard fit, adequate texture for range use and training. 
• Semi-Auto Action: Standard 1911 single-action operation with a short, crisp trigger.

The Kimber Custom II GFO in 10mm draws the kind of comments you'd expect for a full-size 1911 in a hard-hitting caliber.

Build quality and fit/finish get consistent praise. The black matte look is clean, and the fiber optic sights are frequently called out as a practical improvement over stock blade sights for faster target acquisition. Accuracy at the range is well-regarded, and the 10mm round gets credit for substantial stopping power with manageable recoil in a 40 oz platform.

Price is the main friction point. Kimber commands a premium, and some buyers compare the value proposition against other manufacturers offering similar 1911 configurations at lower prices. Magazine capacity (8+1) comes up occasionally as limited relative to modern double-stack handguns, though that's standard for a single-stack 1911. Reliability is mostly positive, with occasional reports of issues tied to specific ammunition types or extended use. Experiences vary. The fiber optic sights earn near-universal positive mentions, though a handful of owners prefer more durable traditional sights for hard use.