Kimber Custom II GFO 10mm 1911, 5 inch Government, Matte Black, Green Fiber-Optic Front, 8+1 Capacity
This Kimber Custom II GFO is a full-size, Government-length 1911 chambered in 10mm with a matte black steel slide and frame. The GFO variant features a bright green fiber-optic front sight paired with a fixed two-dot rear, offering a clear sight picture. It includes front and rear cocking serrations, a lowered ejection port, and comes with three 8-round magazines.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: There are some surface scratches visible from light handling and prior use.
What’s Included
- Kimber-branded hard case
- Kimber 1911 Safety & Instruction Manual
- Three 8-round steel single-stack 1911 magazines
The Custom II GFO is a 10mm, single-action, full-size 1911 with a 5 inch bushing, non-threaded barrel and an approximate overall length of 8.7 inches. The slide and frame are steel with a matte black finish, and the dust cover is non-railed.
Sights are installed in dovetails and include a green fiber-optic front and a fixed square-notch rear with two white dots. The slide is cut with both front and rear cocking serrations and a lowered ejection port.
Controls and safeties include a left-side thumb safety, a grip safety with a memory pad, and the Series II Swartz-type firing pin block actuated by the grip safety. The pistol uses a skeletonized, three-hole trigger and a skeletonized commander-style hammer.
Grip features include checkered wood panels with Kimber medallions, a smooth front strap, and a flat, checkered mainspring housing. The pistol has an 8+1 capacity, a 1:16 twist rate, and comes with three steel single-stack magazines.
Made in the USA, this specific configuration is identified by Kimber part number 3700551 and is built on the proven 1911 platform in the Custom II series.




