The EAA Corp Girsan Witness 2311 is a single-action semi-automatic pistol in 10mm Auto with a steel frame, a 5-inch barrel, and a 15+1 round capacity. It ships with an optics-ready slide, an extended beavertail, an accessory rail, ambidextrous thumb safety, and fixed contrast sights. Grips are black checkered polymer. 
 

Key Specifications 

• Model: Witness 2311 
• Type: Semi-Auto Pistol 
• Action: Single Action 
• Caliber: 10mm Auto 
• Barrel Length: 5 inches 
• Overall Length: 8.75 inches 
• Capacity: 15+1 rounds 
• Frame Material: Steel Frame 
• Finish Color: Black 
• Weight: 1.65 lbs 
• Grips: Black Checkered Polymer 
• Sights: Fixed Contrast Sights 
• Safety Features: Ambidextrous Thumb Safety 
• Additional Info: Optics Ready Slide, Extended Beavertail, Accessory Rail 
   

Features 

 
The optics-ready slide accepts common red dot footprints without an adapter plate. The extended beavertail helps manage grip position and reduces felt recoil by keeping the hand high on the gun. The ambidextrous thumb safety works naturally for both right- and left-handed shooters, and the accessory rail accommodates lights and lasers. Fixed contrast sights are installed as standard, though most owners running this setup will likely swap them once an optic goes on.

Owners of the Girsan Witness 2311 in 10mm generally come away with a favorable impression, particularly given its price relative to performance. The optics-ready slide is consistently called out as a value-add — it makes the gun immediately usable with a red dot without extra machining. Build quality gets positive marks; the steel frame feels solid in hand. Recoil for a 10mm is described as manageable by most users, which is a reasonable expectation from a steel-framed, full-size platform.

Aftermarket support also gets mentioned favorably, since the 2011-derived pattern means a reasonable selection of compatible parts. The criticisms that come up most are weight (noticeable for carry use compared to lighter options) and the trigger, which some find acceptable while others want a cleaner break or shorter reset. Both are typical trade-offs for the category at this price point.