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Shop Proof Research Rifle Barrels, AR-15 Barrels, AR-10 Barrels — 311 products / 779 models

Proof Research is revolutionizing the firearms industry by applying science, technology, and manufacturing excellence to produce carbon fiber rifle barrels that exceed the performance of all other barrels. Proof Research has gathered some of the finest talent, experience, and innovations to produce carbon fiber barrels and complete rifle systems that are setting new industry standards and have gained a reputation among backcountry hunters, precision rifle competitors, and military operators for ruggedness, reduced weight, and extreme accuracy. Proof Research remains committed to reducing weight while improving accuracy and performance. Their unique manufacturing processes and advanced technology composite materials allow them to produce match-grade carbon fiber barrels that weigh a fraction of traditional steel rifle barrels while compromising nothing. They're not just lighter—they're better. Proof Research is proud to offer a limited warranty on its merchandise. Check out our article about installing a barrel. Our product experts have decades of hands-on experience and are a free resource we provide, so contact them for answers via email, chat or phone. Buy from OpticsPlanet.com for great service and great gear at great prices. Plus free shipping on orders over $49.image

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311 Products in Proof Research

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Image of Proof Research PR15 6mm ARC Carbon Fiber Threaded Barrel 4 models Proof Research PR15 6mm ARC Carbon Fiber Threaded Barrel (4) List: $1,149.00 (Save 13%) $999.00 Free 2 Day Shipping
Image of Proof Research PR15 6mm ARC Stainless Steel Threaded Barrel 4 models Proof Research PR15 6mm ARC Stainless Steel Threaded Barrel (6) List: $749.00 (Save 13%) $649.00 Free 2 Day Shipping
Image of Proof Research Carbon AR .223 Wylde Threaded Rifle Barrel 10 models Proof Research Carbon AR .223 Wylde Threaded Rifle Barrel (1) List: $1,149.00 (Save 13%) $999.00 Free 2 Day Shipping
Image of Proof Research Tikka Carbon .22 Creedmoor Threaded Rifle Barrel Proof Research Tikka Carbon .22 Creedmoor Threaded Rifle Barrel List: $1,149.00 (Save 13%) $999.00 Free 2 Day Shipping
Image of Proof Research Impact Precision Carbon .338 ARC Threaded Rifle Barrel Proof Research Impact Precision Carbon .338 ARC Threaded Rifle Barrel List: $1,149.00 (Save 13%) $999.00 Free 2 Day Shipping
Image of Proof Research Kelbly Carbon Fiber .308 Winchester Threaded Rifle Barrel Proof Research Kelbly Carbon Fiber .308 Winchester Threaded Rifle Barrel List: $1,149.00 (Save 13%) $999.00 Free 2 Day Shipping
Image of Proof Research PR10 Carbon Fiber CamGas 6.5CM Deepfeed Rifle Barrels 3 models Proof Research PR10 Carbon Fiber CamGas 6.5CM Deepfeed Rifle Barrels (4) List: $1,149.00 (Save 13%) $999.00 Free 2 Day Shipping
Image of Proof Research Accuracy International Pre-Fit Carbon Fiber Barrel 30 models Proof Research Accuracy International Pre-Fit Carbon Fiber Barrel (1) List: $1,399.00 (Save $100.00) $1,299.00 15% Coupon
Image of Proof Research PR10 Carbon Fiber 308 Win Rifle Barrels 2 models Proof Research PR10 Carbon Fiber 308 Win Rifle Barrels (7) List: $1,149.00 (Save 13%) $999.00 Free 2 Day Shipping
Image of Proof Research Barrett MRAD Pre-Fit Barrels 22 models Proof Research Barrett MRAD Pre-Fit Barrels As Low As (Save Up to 13%) $1,499.00
Image of Proof Research Zermatt Origin Drop In Arms Steel 7mm PRC Threaded Rifle Barrel Proof Research Zermatt Origin Drop In Arms Steel 7mm PRC Threaded Rifle Barrel List: $749.00 (Save 13%) $649.00
Image of Proof Research Tikka Pre-Fit Carbon Fiber Threaded Barrels 10 models Proof Research Tikka Pre-Fit Carbon Fiber Threaded Barrels List: $1,149.00 (Save 13%) $999.00 Free 2 Day Shipping
Image of Proof Research Defiance Ruckus Carbon Pre-Fit Threaded Barrels 9 models Proof Research Defiance Ruckus Carbon Pre-Fit Threaded Barrels (1) List: $1,149.00 (Save 13%) $999.00 Free 2 Day Shipping
Image of Proof Research Stiller Steel .22 Creedmoor Threaded Rifle Barrel Proof Research Stiller Steel .22 Creedmoor Threaded Rifle Barrel List: $749.00 (Save 13%) $649.00
Image of Proof Research Q Fix Pre-Fit Carbon Fiber Threaded Barrels 15 models Proof Research Q Fix Pre-Fit Carbon Fiber Threaded Barrels (3) List: $1,249.00 (Save 12%) $1,099.00 Free 2 Day Shipping
Image of Proof Research Zermatt Tl3/Sr3 Sa Drop In Arms Steel 6mm GT Threaded Rifle Barrel Proof Research Zermatt Tl3/Sr3 Sa Drop In Arms Steel 6mm GT Threaded Rifle Barrel List: $749.00 (Save 13%) $649.00
Image of Proof Research Sig Cross Carbon .308 Winchester Threaded Rifle Barrel 3 models Proof Research Sig Cross Carbon .308 Winchester Threaded Rifle Barrel List: $1,299.00 (Save 12%) $1,149.00
Image of Proof Research Zermatt Origin Drop In Arms Carbon Fiber .338 ARC Threaded Rifle Barrel Proof Research Zermatt Origin Drop In Arms Carbon Fiber .338 ARC Threaded Rifle Barrel List: $1,149.00 (Save 13%) $999.00
Image of Proof Research Impact Precision Carbon .300 PRC Threaded Rifle Barrel Proof Research Impact Precision Carbon .300 PRC Threaded Rifle Barrel List: $1,149.00 (Save 13%) $999.00
Image of Proof Research Zermatt Tl3/Sr3 Sa Drop In Arms Carbon Fiber .22 Creedmoor Threaded Rifle Barrel Proof Research Zermatt Tl3/Sr3 Sa Drop In Arms Carbon Fiber .22 Creedmoor Threaded Rifle Barrel List: $1,149.00 (Save 13%) $999.00
Image of Proof Research Falkor Carbon .308 Winchester Threaded Rifle Barrel Proof Research Falkor Carbon .308 Winchester Threaded Rifle Barrel List: $1,149.00 (Save 13%) $999.00
Image of Proof Research Impact Precision Steel 6mm GT Threaded Rifle Barrel Proof Research Impact Precision Steel 6mm GT Threaded Rifle Barrel List: $749.00 (Save 13%) $649.00
Image of Proof Research Impact Precision Nbk Drop In Carbon .300 PRC Threaded Rifle Barrel Proof Research Impact Precision Nbk Drop In Carbon .300 PRC Threaded Rifle Barrel List: $1,149.00 (Save 13%) $999.00
Image of Proof Research Bolt Action Carbon Fiber Blank Barrels 28 models Proof Research Bolt Action Carbon Fiber Blank Barrels As Low As (Save Up to 33%) $669.99 Clearance
Image of Proof Research Zermatt Origin Drop In Arms Carbon Fiber 7mm PRC Threaded Rifle Barrel Proof Research Zermatt Origin Drop In Arms Carbon Fiber 7mm PRC Threaded Rifle Barrel List: $1,149.00 (Save 13%) $999.00
Image of Proof Research 26 inch Carbon Fiber Rifle Barrel 10 models Proof Research 26 inch Carbon Fiber Rifle Barrel List: $999.00 (Save 10%) $899.00 Free 2 Day Shipping
Image of Proof Research Carbon Fiber 20 inch Rifle Barrel 10 models Proof Research Carbon Fiber 20 inch Rifle Barrel (1) As Low As (Save Up to 13%) $649.00 Free 2 Day Shipping
Image of Proof Research AR Steel 6mm ARC Threaded Rifle Barrel Proof Research AR Steel 6mm ARC Threaded Rifle Barrel (1) List: $749.00 (Save 13%) $649.00
Image of Proof Research Q Fix Carbon .223 Remington Threaded Rifle Barrel 2 models Proof Research Q Fix Carbon .223 Remington Threaded Rifle Barrel List: $1,249.00 (Save 12%) $1,099.00
Image of Proof Research AR-Type Carbon Fiber Barrel 3 models Proof Research AR-Type Carbon Fiber Barrel List: $1,149.00 (Save 13%) $999.00
Image of Proof Research Zermatt Arms Pre-Fit Stainless Steel Threaded Barrels 15 models Proof Research Zermatt Arms Pre-Fit Stainless Steel Threaded Barrels (4) List: $749.00 (Save 13%) $649.00
Image of Proof Research Zermatt Tl3/Sr3 La Drop In Arms Carbon Fiber .300 PRC Threaded Rifle Barrel Proof Research Zermatt Tl3/Sr3 La Drop In Arms Carbon Fiber .300 PRC Threaded Rifle Barrel List: $1,149.00 (Save 13%) $999.00
Image of Proof Research Elevation Carbon 7mm PRC Threaded Rifle Barrel 2 models Proof Research Elevation Carbon 7mm PRC Threaded Rifle Barrel List: $1,149.00 (Save 13%) $999.00
Image of Proof Research Defiance Ruckus Pre-Fit Barrels 2 models Proof Research Defiance Ruckus Pre-Fit Barrels As Low As (Save Up to 22%) $899.99 Final Sale
Image of Proof Research Defiance Ruckus Carbon 7mm Backcountry Threaded Rifle Barrel Proof Research Defiance Ruckus Carbon 7mm Backcountry Threaded Rifle Barrel List: $1,149.00 (Save 13%) $999.00
Image of Proof Research Sig Cross Carbon 6.5mm Creedmoor Threaded Rifle Barrel 3 models Proof Research Sig Cross Carbon 6.5mm Creedmoor Threaded Rifle Barrel List: $1,299.00 (Save 12%) $1,149.00
Image of Proof Research Impact Precision Pre-Fit Carbon Fiber Threaded Barrels 10 models Proof Research Impact Precision Pre-Fit Carbon Fiber Threaded Barrels (1) As Low As (Save Up to 22%) $899.99 Final Sale
Image of Proof Research Big Horn Pre-Fit Carbon Fiber Barrel 7 models Proof Research Big Horn Pre-Fit Carbon Fiber Barrel List: $1,149.00 (Save 13%) $999.00
Image of Proof Research Zermatt Arms Pre-Fit Carbon Fiber Threaded Barrels 20 models Proof Research Zermatt Arms Pre-Fit Carbon Fiber Threaded Barrels List: $1,149.00 (Save 13%) $999.00
Image of Proof Research Defiance Ruckus Steel 6mm GT Threaded Rifle Barrel Proof Research Defiance Ruckus Steel 6mm GT Threaded Rifle Barrel List: $749.00 (Save 13%) $649.00
Image of Proof Research Carbon Fiber Barrel for Bolt Action Rifle 23 models Proof Research Carbon Fiber Barrel for Bolt Action Rifle As Low As (Save Up to 19%) $809.99 Final Sale
Image of Proof Research Carbon Fiber Bolt-Action Barrel 4 models Proof Research Carbon Fiber Bolt-Action Barrel (1) List: $999.00 (Save 10%) $899.00
Image of Proof Research Carbon Fiber 24 inch Barrel, Bolt 19 models Proof Research Carbon Fiber 24 inch Barrel, Bolt As Low As (Save Up to 29%) $529.99 Clearance
Image of Proof Research American Rifle Company Coup De Grace Carbon 7mm PRC Threaded Rifle Barrel 2 models Proof Research American Rifle Company Coup De Grace Carbon 7mm PRC Threaded Rifle Barrel List: $1,149.00 (Save 13%) $999.00
Image of Proof Research AR Steel .223 Wylde Threaded Rifle Barrel 9 models Proof Research AR Steel .223 Wylde Threaded Rifle Barrel List: $749.00 (Save 13%) $649.00
Image of Proof Research PR15 Stainless Steel 300BLK Rifle Barrels Proof Research PR15 Stainless Steel 300BLK Rifle Barrels (2) List: $749.00 (Save 13%) $649.00
Image of Proof Research Zermatt Arms Pre-Fit 7PRC Barrels 3 models Proof Research Zermatt Arms Pre-Fit 7PRC Barrels (1) List: $1,149.00 (Save 13%) $999.00 Final Sale
Image of Proof Research Defiance Ruckus Pre-Fit Stainless Steel Threaded Barrels 6 models Proof Research Defiance Ruckus Pre-Fit Stainless Steel Threaded Barrels (2) List: $749.00 (Save 13%) $649.00
Image of Proof Research Defiance Ruckus Steel 7mm PRC Threaded Rifle Barrel Proof Research Defiance Ruckus Steel 7mm PRC Threaded Rifle Barrel List: $749.00 (Save 13%) $649.00
Image of Proof Research Accuracy International Pre-Fit Barrel 6 models Proof Research Accuracy International Pre-Fit Barrel As Low As (Save Up to 15%) $849.00
Image of Proof Research Bolt Action Stainless Steel Blank Barrels 8 models Proof Research Bolt Action Stainless Steel Blank Barrels (1) List: $549.00 (Save 18%) $449.00
Image of Proof Research Impact Precision Carbon .25 Creedmoor SRP Threaded Rifle Barrel 2 models Proof Research Impact Precision Carbon .25 Creedmoor SRP Threaded Rifle Barrel List: $1,149.00 (Save 13%) $999.00
Image of Proof Research Bolt Action Blank Barrels 12 models Proof Research Bolt Action Blank Barrels As Low As (Save Up to 18%) $449.00
Image of Proof Research AR Steel .338 ARC Threaded Rifle Barrel 5 models Proof Research AR Steel .338 ARC Threaded Rifle Barrel List: $749.00 (Save 13%) $649.00
Image of Proof Research CZ Carbon Fiber Pre-Fit Barrels 2 models Proof Research CZ Carbon Fiber Pre-Fit Barrels List: $1,149.00 (Save 13%) $999.00
Image of Proof Research Impact Precision Pre-Fit Stainless Steel Threaded Barrels 8 models Proof Research Impact Precision Pre-Fit Stainless Steel Threaded Barrels (2) List: $749.00 (Save 13%) $649.00 Final Sale
Image of Proof Research AR Steel .22 ARC Threaded Rifle Barrel 4 models Proof Research AR Steel .22 ARC Threaded Rifle Barrel List: $749.00 (Save 13%) $649.00
Image of Proof Research Barrett MRAD Steel 6.5mm Creedmoor Threaded Rifle Barrel Proof Research Barrett MRAD Steel 6.5mm Creedmoor Threaded Rifle Barrel List: $1,699.00 (Save 12%) $1,499.00
Image of Proof Research Sig Cross Carbon .22 Creedmoor Threaded Rifle Barrel 2 models Proof Research Sig Cross Carbon .22 Creedmoor Threaded Rifle Barrel List: $1,299.00 (Save 12%) $1,149.00
Image of Proof Research Sig Cross Carbon 6mm Creedmoor Threaded Rifle Barrel 3 models Proof Research Sig Cross Carbon 6mm Creedmoor Threaded Rifle Barrel List: $1,299.00 (Save 12%) $1,149.00
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Best AR Iron Sights of 2026 on OpticsPlanet by OpticsPlanet Product Expert
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Best AR-15 Handguards of 2026 on OpticsPlanet by OpticsPlanet Product Expert
4 Most Common AR15 Issues & How to Fix Them by Corey F.
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