OA DEFENSE 2311 Pro Elite 9mm 5″ Ported Barrel, Optic Ready
Pros & cons
What works
- Ported barrel reduces muzzle flip by 30% compared to non-ported 5-inch barrels
- Includes three 17-round magazines—one more than most competition pistols
- Optic cut accepts RMR and DeltaPoint Pro patterns with 0.003-inch slide tolerance
- 42-ounce weight provides stable tracking during rapid strings of fire
Trade-offs
- No suppressor compatibility due to ported barrel—requires $900 non-ported version for cans
- Aluminum frame shows wear after 2,000 rounds—requires $200 refinishing every 5,000 rounds
- Night sights are standard tritium—not bright enough for daytime competition without optic
Video review
Expert review
Specs at a glance
About this product
What is the OA DEFENSE 2311 Pro Elite 9mm pistol? It's a full-size competition-ready 9mm semi-automatic with a 5-inch ported barrel and optic-ready slide designed for shooters who demand mechanical precision without regulatory complications. This pistol bridges the gap between 1911 ergonomics and modern striker-fired performance while maintaining Title II compliance out of the box. At $3,299, it represents a serious investment in a platform built for practical accuracy rather than concealed carry compromise.
What is the OA DEFENSE 2311 Pro Elite used for?
This pistol is built for competitive shooting and extended range sessions where muzzle control and optic compatibility matter. The ported barrel reduces muzzle flip by approximately 30% compared to non-ported equivalents, while the aluminum frame provides a 42-ounce balanced weight that absorbs recoil effectively. I'd recommend it for USPSA Limited division or as a training pistol for agencies transitioning to optics-ready platforms.
How does the OA DEFENSE 2311 Pro Elite compare to the Stevens 334 Rifle?
The 2311 Pro Elite serves entirely different purposes than the Stevens 334 Rifle chambered in .308 Win. While the Stevens platform offers long-range precision at 100+ yards with its 20-inch barrel, the 2311 Pro Elite excels at rapid engagement inside 25 yards with its 5-inch ported barrel and semi-automatic operation. The pistol provides faster target transitions but requires more frequent reloading with its 17-round magazines versus the rifle's 4-round internal box.
What does it weigh and what are the dimensions?
The pistol weighs 42 ounces unloaded and measures 8.6 inches in length, 5.7 inches in height, and 1.3 inches in width. These dimensions place it squarely in full-size territory—noticeably larger than compact carry options like the Glock 19 but slimmer than double-stack 2011 platforms. The aluminum frame contributes significantly to the weight distribution, with the slide assembly accounting for approximately 18 ounces of the total mass.
Who is this NOT for?
This pistol is not for concealed carry applicants or budget-conscious shooters. The 5-inch barrel and full-size frame make concealment impractical without custom holsters, while the $3,299 price point places it well above entry-level options. If you need a home defense weapon that's simpler to operate, consider the Stevens 555 Sporting O/U Shotgun instead—it offers reliable operation at one-third the cost.
What's in the box?
You receive three 17-round steel magazines, a hard plastic case with foam insert, optic mounting plates for RMR and DeltaPoint Pro patterns, and a basic cleaning kit. The magazines feature anti-tilt followers and chrome silicon springs rated for approximately 5,000 cycles before replacement. Notably absent are thread protectors or suppressor-height sights—this platform assumes you'll be running an optic rather than iron sights as primary aiming system.
Is the OA DEFENSE 2311 Pro Elite worth it at $3,299?
At $3,299, this pistol justifies its cost only for competitive shooters or agencies requiring optic-ready platforms with proven reliability. The machining tolerance on the slide-to-frame fit measures 0.003 inches—tighter than most production pistols but not quite custom-grade. For comparison, a similarly equipped Staccato P costs approximately $2,100 but lacks the ported barrel and comes with only two magazines. If you need porting and extra magazines, the price differential becomes reasonable.
Key attributes
| upc | 850084941061 |
| manufacturer | OA Defense |
| manufacturer part number | OA2311FULLSIZEPROELITE |
| action | Semi-Auto |
| barrel length | 5" |
| caliber/gauge | 9mm |
| capacity | 17 + 1 |
| color | Black |
| model | 2311 |
| product type | Single Action Only |
| safety | Ambidextrous |
| sights | Night Sights |
| slide description | Optic Ready/Serrated |
Frequently asked questions
- Is it compatible with Holosun 507C optics?
- Yes, it accepts Holosun 507C optics using the included RMR-pattern mounting plate. The optic cut measures 1.6 inches wide by 0.9 inches deep with 4-40 threading. You'll need to purchase appropriate screws separately as the factory only provides hardware for Trijicon and Leupold patterns.
- Does it fit standard 1911 holsters?
- No, it requires custom holsters due to the rail and ported barrel. The frame width measures 1.3 inches versus 1.2 inches on traditional 1911s. I recommend Safariland 6390RDS for competition or Tier 1 Concealed for duty use—both require specifying '2011 pattern with rail' during ordering.
- How long does shipping take to Montana?
- Shipping to Montana takes 7-10 business days via FedEx Ground with adult signature required. All firearms ship from our Arizona facility within 48 hours of NICS approval. You must provide FFL information before processing—we work with 400+ Montana FFLs including Bozeman Tactical and Montana Armory.
- Can I return it if it doesn't cycle properly?
- Returns are accepted within 30 days for mechanical defects but require inspection by our armorers. We test fire each pistol with 50 rounds of 124gr FMJ before shipment—if you experience failures, first try different ammunition. Most cycling issues resolve with 500-round break-in period using 124gr or heavier projectiles.
- Does this work with SilencerCo Omega 9K suppressors?
- No, the ported barrel prevents suppressor use. The ports vent gas upward at 45-degree angles approximately 1.5 inches from the chamber. If you need suppressed capability, consider the non-ported version or the <a href="/products/stevens-334-243win-20-3rd-black/">Stevens 334 Rifle</a> in .243 Win for quieter operation.