OA Defense Firearms

About OA Defense

OA Defense is a forward-thinking firearms manufacturer founded in 2021, originally known as Oracle Arms before rebranding to their current name.

The company was established with a mission to engineer innovative firearm platforms designed to enhance the performance capabilities of high-level shooting sports athletes, law enforcement officers, and military special operations personnel.

In 2025, OA Defense relocated their headquarters and manufacturing operations from Nevada to their new home in North Carolina, marking a significant milestone in the company's growth.

Their design philosophy is directly driven by end users, mandating the features and functionality incorporated into products through a function-first mindset that expands the envelope of what is possible.

The OA Defense team comprises individuals from diverse backgrounds including military veterans, industry professionals, engineers, and skilled tradesmen, providing an invaluable amalgam of insights, skills, and experience.

Popular OA Defense Features

Fully Ambidextrous Controls

• The patented right-side slide stop makes the OA 2311 the first completely ambidextrous double-stack 1911 platform available.

P320 Pattern Magazine Compatibility

• Uses readily available, reliable, and cost-effective SIG P320 magazine pattern for enhanced convenience and affordability.

External Extractor Design

• Eliminates the need for spring tension tuning, improving reliability and maintenance convenience.

Modular Grip and Magwell System

• Multiple configuration options provide unmatched versatility for different shooting applications and user preferences.

Patent-Pending Debris Clearance System

• Engineered channels in critical areas ensure peak performance in austere environments and challenging conditions.

Optics-Ready Design

• Ships with four slide plates allowing use of most popular red dot optics with rear sight co-witness capability.

Best-Selling OA Defense Pistols

OA 2311â„¢ Full-Size

• The flagship 9mm pistol features 17+1 capacity, 5.00" barrel, and innovative ambidextrous controls starting at $2,299.

OA 2311â„¢ Compact

• A more concealable version with 15+1 capacity and 4.25" barrel, perfect for everyday carry at $1,899.

OA 2311â„¢ Pro

• The 5" ported performance model offers 21+1 capacity with reduced muzzle rise for competitive shooting, priced from $2,599.

OA 2311â„¢ Pro Elite

• The premium all-metal model delivers enhanced performance features and superior construction from $3,149.

OA 2311â„¢ Compact Pro

• An enhanced EDC model combining compact size with Pro-level features for serious concealed carry users at $2,349.

Popular Uses for OA Defense

Competitive Shooting Sports

• OA Defense pistols are designed with "race gun DNA" to enhance performance for high-level competition shooting in USPSA and IPSC events.

Law Enforcement Duty Use

• Built for duty weapon reliability and performance, OA Defense firearms provide law enforcement officers with professional-grade defensive tools.

Military and Tactical Operations

• Engineered for military special operations personnel, these pistols deliver modular design adaptable to various mission requirements.

Concealed Carry and Personal Defense

• Compact Pro models are optimized for everyday carry, offering civilians high-quality defensive firearms with professional-grade features.

Training and Skill Development

• The consistent trigger and reliable performance make OA Defense pistols excellent choices for serious training and marksmanship development.

OA Defense FAQs

QUESTION: What magazines are compatible with OA Defense pistols?
ANSWER: OA Defense pistols use the P320 pattern magazine system, making them compatible with most SIG P320 magazines for enhanced availability and affordability.

QUESTION: Are OA Defense firearms fully ambidextrous?
ANSWER: Yes, the OA 2311 features patented right-side slide stop controls, making it the first completely ambidextrous double-stack 1911 platform.

QUESTION: What optics can I mount on OA Defense pistols?
ANSWER: OA Defense pistols ship with four slide plates compatible with RMR, RMSc, and DPP patterns, with additional plates available for SRO and ACRO optics.

QUESTION: Does OA Defense offer military and law enforcement discounts?
ANSWER: Yes, OA Defense provides LE/MIL discount programs for active and retired military, law enforcement, and first responders.

QUESTION: What caliber are OA Defense pistols chambered in?
ANSWER: All OA Defense pistols are exclusively chambered in 9x19mm for optimal performance and ammunition availability.

QUESTION: How much do OA Defense pistols weigh?
ANSWER: The full-size OA 2311 weighs 29 ounces unloaded, providing an optimal balance of durability and handling characteristics.

QUESTION: What is included with an OA Defense pistol purchase?
ANSWER: Each OA Defense pistol includes a custom range bag, magazines, slide plates, night sights, manual, and safety lock.

QUESTION: Can I modify my OA Defense pistol?
ANSWER: OA Defense recommends using qualified gunsmiths for modifications and maintains a list of approved vendors for customization services.

QUESTION: What is the trigger weight on OA Defense pistols?
ANSWER: Standard OA Defense pistols feature 4.0-4.5 pound trigger weights, with Pro models offering lighter, enhanced trigger systems.

QUESTION: Where can I purchase OA Defense firearms?
ANSWER: OA Defense pistols are available through their website with FFL transfer or through their network of authorized dealers nationwide.