The OA Defense 2311 Compact Pro is a semi-automatic pistol chambered in 9mm with a 4.25-inch barrel. It has a black frame and gray grip, and ships with a 15-round magazine. The compact sizing keeps the platform shorter than a full-size 2311 while retaining the double-stack 15-round capacity. 
 

Key Specifications 

• Brand: OA Defense 
• Model: 2311 Compact Pro 
• Caliber: 9mm 
• Action: Semi Auto 
• Barrel Length: 4.25 inches 
• Capacity: 15 rounds 
• Color/Finish: Black frame, Gray grip 
   

Detailed Features 

• 4.25-inch barrel on a compact 2311 platform 
• 15-round magazine included 
• Black frame with gray grip 
• Double-stack 2311-pattern layout 
• Compact configuration relative to standard 2311 sizing

Owners of the OA Defense 2311 Compact Pro generally appreciate what the 2311 platform delivers in a more compact package. The 15-round 9mm capacity is a frequent talking point, and most find the gray grip and black frame combination appealing. Some owners note the grip texture is adequate but not aggressive.

The 4.25-inch barrel gets positive marks for balancing carry comfort with sight radius. The 2311 Compact Pro is generally reliable once broken in, though a handful of owners mention needing a few hundred rounds before the feeding cycle fully settles, particularly with hollow-point loads.

On value, buyers familiar with 2311-style pistols tend to view the OA Defense as a competitive option in its tier. Those coming from more common semi-auto platforms sometimes find the controls and manual of arms require adjustment. The trigger receives mostly favorable feedback, though reset feel divides opinion.