Kimber SIS Pro .45 ACP 1911, 4-inch Barrel on Full-Size Frame, KimPro II Finish, Night Sights, 8+1
The Kimber SIS Pro stands out as a short-run, collectible 1911 from 2008–2010 with direct input from LAPD's Special Investigation Section. This Pro variant pairs a 4-inch barrel with a full-size frame and uses a Series I–style system without a Swartz firing-pin safety. It features a matte gray KimPro II finish over stainless steel, fixed night sights with a ledge, and purposeful grip and control enhancements.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Good - Clean, well-maintained, minor wear marks.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
What's Included
- Kimber factory hard case
- Two 8-round magazines (one Wilson Combat 1911 mag; one Kimber KimPro Tac-Mag, .45 ACP)
This SIS Pro variant blends compact slide length with a full-size grip, using a 4-inch barrel atop a full-size 1911 frame. Chambered in .45 ACP with an 8+1 capacity, it retains the classic single-action 1911 platform while offering a balance of handling and capacity.
The SIS series reflects design input from LAPD's Special Investigation Section and saw a short production span from 2008 to 2010. It is a Series I–style configuration without a Swartz firing-pin safety, a detail many enthusiasts value for its straightforward mechanics.
Construction is stainless steel with a matte gray KimPro II finish on both slide and frame. The slide features SIS cocking serrations and a flat-top profile, and the pistol is marked "KIMBER, YONKERS, NY U.S.A." to denote its U.S. manufacture.
Controls and ergonomics include an ambidextrous thumb safety, a beavertail grip safety with memory bump, a checkered magazine release, and a beveled magazine well. The front strap wears 30 LPI checkering, and the skeletonized hammer complements the fast, crisp single-action trigger. Sighting is handled by fixed night sights with a ledge, using a dovetailed front blade with a single dot and a dovetailed ledge-style rear. Checkered laminated wood grips with a Kimber script inset complete the package.

