OA Defense OA2311CPROKITBLKPRT15 | 2311 Compact Pro | 9x19mm

The OA 2311 Compact Pro is a compact, optic-ready 9x19mm pistol with a 4.25-inch ported barrel and a 15+1 magazine capacity. The kit configuration ships with five 15-round OA magazines and multiple slide plates to accept a range of red-dot footprints. Its combination of a ported barrel, contoured slide, and progressive polymer grip is intended to aid rapid, controlled follow-up shots in everyday-carry and range/practice contexts. For an optic under $1,000 that pairs well with this platform, consider a Holosun 507K (K/RMSc footprint), which is compatible with the included Holosun K/RMSc optic plate.

Product Specifications

• The UPC is 850055310537.
• The caliber is 9x19mm.
• The barrel length is 4.25 inches.
• The unloaded weight is 25 oz.
• The tested trigger weight is 3.5-4.0 lbs.
• The capacity is 15+1 rounds.
• The frame material is 7075 Aluminum.
• The grip material and color are black polymer.
• The slide material is 17-4 stainless steel.
• The barrel finish is Black DLC and the barrel is ported.
• The pistol ships optic-ready with three optic mounting plates (including RMR DPP & Holosun K/RMSc footprints) and an iron sight cover plate.
• The kit includes (5) 15-round OA magazines.
• The kit includes (4) slide plates (iron sight cover plate; RMR DPP & Holosun K/RMSc footprint plates).
• The kit includes Night Fision tritium night sights (standard height installed; intermediate and suppressor-height options provided for specific optic plates).
• The overall dimensions are 7.75″ L x 5.10″ H x 1.40″ W.

The OA 2311 Compact Pro kit delivers a compact platform that blends reduced muzzle rise, optics flexibility, and practical carry features. The included magazines, sighting options, and mounting plates make it a ready-to-fit solution for shooters who prioritize controllability and a compact footprint for everyday carry and dedicated range work. Its ported barrel and contoured slide help manage recoil, while the progressive grip texture and enhanced trigger treatment support fast, consistent shooting.