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OA Defense

OA Defense engineers and manufactures high-performance, duty-grade handguns in the United States, with a focus on blending competition-level speed and accuracy with the reliability demanded by professionals. The flagship 9mm OA 2311TM series features a 1911-inspired design refined for modern use, including a fully ambidextrous control layout, tool-free takedown, and compatibility with widely available SIG P320® pattern magazines for ease of maintenance and logistics. Each pistol is optimized for optics with multiple co-witnessing slide plates and is built to rigorous standards in OA Defense’s North Carolina facility, where every unit undergoes live-fire testing before shipment. For those seeking a proven platform that bridges the gap between competition and duty, shop the OA Defense collection for sale today.

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17 Product(s)
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OA Defense 2311 Compact Pro Plus Kit OA2311CPROPLSHDSPRT17 Pistol 9mm 4.25" 17+1 SAO Optics-Ready Ported Barrel Sage Grip.

OA Defense 2311 Compact Pro Plus Kit OA2311CPROPLSHDSPRT17 Pistol 9mm 4.25" 17+1 SAO Optics-Ready Ported Barrel Sage Grip.

$2499 99
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OA Defense 2311 Pro OA-2311-FPRO-KIT-HDB-PRT-21 Pistol, 9mm, 5" Ported Barrel, 21+1, Single Action, Optics-Ready, High Desert

OA Defense 2311 Pro OA-2311-FPRO-KIT-HDB-PRT-21 Pistol, 9mm, 5" Ported Barrel, 21+1, Single Action, Optics-Ready, High Desert

$2749 00
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OA Defense 2311 Pro OA-2311-FPRO-KIT-HDS-PRT-21 Pistol 9mm 5" Barrel 21+1 Capacity Single Action Optics-Ready Ported Barrel Sage Grip.

OA Defense 2311 Pro OA-2311-FPRO-KIT-HDS-PRT-21 Pistol 9mm 5" Barrel 21+1 Capacity Single Action Optics-Ready Ported Barrel Sage Grip.

$2749 00
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OA OA-2311-FPRO-KIT-GRY-PRT-21 5 21/17R Gray

OA OA-2311-FPRO-KIT-GRY-PRT-21 5 21/17R Gray

$2599 00
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OA OA-2311-FPRO-KIT-BLK-PRT-21 5 21/17R Black

OA OA-2311-FPRO-KIT-BLK-PRT-21 5 21/17R Black

$2599 00
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Oa Defense OA2311FPROELTHDBPRT21 2311 Pro Elite 17+1/21+1 5" Black DLC Ported Barrel, Optic Ready/Serrated Slide, Black Aluminum Frame w/Picatinny Rail, Black Grip, Ambidextrous

Oa Defense OA2311FPROELTHDBPRT21 2311 Pro Elite 17+1/21+1 5" Black DLC Ported Barrel, Optic Ready/Serrated Slide, Black Aluminum Frame w/Picatinny Rail, Black Grip, Ambidextrous

$3299 00
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Oa Defense OA2311FPROELTBLKPRT21 2311 Pro Elite 17+1/21+1 5" Black DLC Ported Barrel, Black Optic Ready/Serrated Slide, Black Aluminum Frame w/Picatinny Rail, Black Grip, Ambidextrous

Oa Defense OA2311FPROELTBLKPRT21 2311 Pro Elite 17+1/21+1 5" Black DLC Ported Barrel, Black Optic Ready/Serrated Slide, Black Aluminum Frame w/Picatinny Rail, Black Grip, Ambidextrous

$3149 00
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OA Defense 2311 Compact Pro Plus Kit OA2311CPROPLSBLKPRT17 Pistol 9mm 4.25" 17+1 SAO Ported Barrel Optics-Ready

OA Defense 2311 Compact Pro Plus Kit OA2311CPROPLSBLKPRT17 Pistol 9mm 4.25" 17+1 SAO Ported Barrel Optics-Ready

$2399 00
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OA Defense 2311 Compact OA2311CMPTKITBLKSTD15 Pistol 9mm 4.25" Barrel 15+1 Single Action Optics-Ready, Ambidextrous.

OA Defense 2311 Compact OA2311CMPTKITBLKSTD15 Pistol 9mm 4.25" Barrel 15+1 Single Action Optics-Ready, Ambidextrous.

$1849 99
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OA Defense 2311 Compact Pro OA2311CPROKITHDSPRT15 Pistol 9mm 4.25" 15+1 SAO Ported Barrel Optics-Ready Sage Grip

OA Defense 2311 Compact Pro OA2311CPROKITHDSPRT15 Pistol 9mm 4.25" 15+1 SAO Ported Barrel Optics-Ready Sage Grip

$2449 99
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OA Defense 2311 Compact Plus Kit OA2311CMPTPLSHDSSTD17 Pistol 9mm 4.25" 17+1 Single Action Optics Ready, High Desert Sage Grip.

OA Defense 2311 Compact Plus Kit OA2311CMPTPLSHDSSTD17 Pistol 9mm 4.25" 17+1 Single Action Optics Ready, High Desert Sage Grip.

$2099 99
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OA Defense 2311 Compact OA2311CMPTKITHDSSTD15 Pistol 9mm 4.25" 15rd SAO Optics-Ready High Desert Sage Grip.

OA Defense 2311 Compact OA2311CMPTKITHDSSTD15 Pistol 9mm 4.25" 15rd SAO Optics-Ready High Desert Sage Grip.

$1999 00
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OA Defense 2311 Full Size 9mm 5" 17+1 SAO Optics-Ready High Desert

OA Defense 2311 Full Size 9mm 5" 17+1 SAO Optics-Ready High Desert

$2399 99
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OA Defense 2311 Compact Pro Plus Kit OA2311CPROPLSGRYPRT17 Pistol 9mm 4.25" 17rd SAO Ported Barrel Optics Ready

OA Defense 2311 Compact Pro Plus Kit OA2311CPROPLSGRYPRT17 Pistol 9mm 4.25" 17rd SAO Ported Barrel Optics Ready

$2349 99
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OA Defense 2311 Compact Pro OA2311CPROKITGRYPRT15 Pistol 9mm 4.25" Ported Barrel 15rd SAO Optics-Ready Gray Grip, Ambidextrous

OA Defense 2311 Compact Pro OA2311CPROKITGRYPRT15 Pistol 9mm 4.25" Ported Barrel 15rd SAO Optics-Ready Gray Grip, Ambidextrous

$2299 99
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OA Defense 2311 Compact Plus Kit OA2311CMPTPLSBLKSTD17 Pistol 9mm 4.25" 17rd SAO Optics-Ready, Night Sights, Fullsize Magwell.

OA Defense 2311 Compact Plus Kit OA2311CMPTPLSBLKSTD17 Pistol 9mm 4.25" 17rd SAO Optics-Ready, Night Sights, Fullsize Magwell.

$1949 99
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OA Defense 2311 Compact Pro OA2311CPROKITBLKPRT15 Pistol 9mm 4.25" 15rd SAO Ported Barrel Optics-Ready

OA Defense 2311 Compact Pro OA2311CPROKITBLKPRT15 Pistol 9mm 4.25" 15rd SAO Ported Barrel Optics-Ready

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