The OA Defense 2311 is a full-size semi-automatic pistol chambered in 9mm with a 5-inch barrel. It has a 17-round capacity and is finished in High Desert Sage on the grip with a High Desert slide. The 2311 platform combines a double-stack grip with a single-stack-width slide and ships optics-ready. 
 

Key Specifications 

• Brand: OA Defense 
• Model: 2311 
• Caliber: 9mm 
• Action: Semi Auto 
• Barrel Length: 5 in 
• Color/Finish: High Desert Sage 
• Capacity: 17 rounds 
   

Detailed Features 

• 5-inch barrel on a full-size 2311 platform 
• 17-round capacity in a double-stack configuration 
• High Desert Slide paired with a Sage Grip 
• Optics-ready cut on the slide 
• Kit included per Oracle Arms variant listing

Owners of the OA Defense 2311 frequently compare it to other double-stack 2011-derivative pistols on the market. The High Desert Sage color combination gets positive remarks for its understated look, and the optics-ready slide is commonly cited as a practical addition. Most owners report the 5-inch barrel and full-size frame provide a comfortable shooting experience with 9mm.

The trigger draw and reset on the 2311 platform are a common discussion point. Many find it crisper than standard polymer pistols in this price range, but some note inconsistency in the break between units. Build quality feedback on the OA Defense specifically is mixed; several owners report tight tolerances out of the box that require a break-in period.

Magazine compatibility and aftermarket support for the 2311 platform are generally viewed as a work in progress compared to more established designs. Owners who prioritize the optics-ready configuration at this capacity tend to find value in the platform, while those expecting plug-and-play accessory compatibility sometimes find the options limited.