The EAA Corp Girsan Witness 2311 is a compact single-action .45 ACP pistol with a steel frame and black polymer grip, built around the 2011 pattern and sized for everyday carry or sport use. At 3.4" barrel and 7.15" overall, it's on the smaller end for a .45, though the single-action trigger keeps the pull clean and consistent. 
 

Key Specifications 

• Manufacturer: EAA Corp 
• Family: Girsan Witness 2311 Series 
• Model: Witness 2311 
• Type: Semi-Auto Pistol 
• Action: Single Action 
• Caliber: .45 ACP 
• Finish: Black 
• Frame: Steel with Black Polymer Grips 
• Barrel Length: 3.4" 
• Overall Length: 7.15" 
• Capacity: 11+1 (1 magazine included) 
• Weight: 1.4 lbs. 
• Sights: Fixed Contrast 
• Safety: Ambi Thumb Safety 
• Notable Features: Optics Ready Slide, Extended Beavertail, Accessory Rail 
   

Features 

 
The optics-ready slide cut lets you mount a red dot without a gunsmith visit, which is a genuine advantage for anyone competing or running a dot for carry. Fixed contrast sights give a usable backup if you run it without an optic. The extended beavertail helps with grip high on the tang, which matters with .45 recoil in a pistol this light at 1.4 lbs. The ambi thumb safety works the same from either side, and the accessory rail accepts standard light/laser attachments. 
 
The 3.4" barrel is short for a .45 ACP but the single-action trigger is a real asset — no staging, just a clean break that helps with accuracy at the range or in a match. The 11+1 capacity is reasonable for the cartridge and the compact frame.

Owners of the Girsan Witness 2311 in .45 ACP generally land in two camps: people who bought it because they wanted a compact 2011-pattern .45 at a non-custom price, and people who just wanted a carry or range gun and found it delivered.

The optics-ready cut gets consistent praise from shooters who run red dots. Most report solid reliability across standard .45 ACP loads. Recoil does come up — the pistol is light at 1.4 lbs., so .45 ACP hits with some snap compared to a heavier steel gun, though most find it manageable after a few hundred rounds.

Critiques tend to focus on two areas: aftermarket support is thinner than for a 1911 or 2011 from a U.S. maker, and some early buyers noted fit-and-finish inconsistencies or a short break-in period before feeding got reliable. Neither issue appears to be universal. On value, the general read is positive — the feature set at the price is hard to argue with, even if it's not a custom shop gun.