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Proof Research AR-Type Carbon Fiber Barrel Up to 13% Off w/ Free S&H — 3 models

Special offer available for this product. Click here to see!
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Proof Research AR-Type Barrel, Carbon Fiber, .308 WIN, 16 inch, Intermediate Length, 1/10 Twist, 5/8-24 Thread, Black, 101261
Proof Research AR Type Carbon Fiber Barrel, 6.5 Grendel, 18in, 8 Twist, .750 Gas Journal Diameter, 5/8-24 Thread, 121665
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Proof Research AR-Type Barrel, Carbon Fiber, .308 WIN, 16 inch, Intermediate Length, 1/10 Twist, 5/8-24 Thread, Black, 101261
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Proof Research AR-Type Barrel, Carbon Fiber, .308 WIN, 16 inch, Intermediate Length, 1/10 Twist, 5/8-24 Thread, Black, 101261
Proof Research AR Type Carbon Fiber Barrel, 6.5 Grendel, 18in, 8 Twist, .750 Gas Journal Diameter, 5/8-24 Thread, 121665
2 of 2 images
Proof Research AR Type Carbon Fiber Barrel, 6.5 Grendel, 18in, 8 Twist, .750 Gas Journal Diameter, 5/8-24 Thread, 121665

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Questions & Answers
.224 is that a 5.56 also thanks

A .224 uses a 6.8 bolt and is not compatible with a 5.56 or a .223. A .224 is a class of it's own. I hope this helps.

by Grendel man, Verified Owner, January 9, 2022
See 1 More Answer
Hello. I’m trying to plan to build an AR. I want it to be capable to use Sigs new fury ammo in 277. Can’t find other parts needed. Help? Expert Answer

We currently do not have any Proof Research AR-Type Carbon Fiber Barrels chambered for .277 Sig Fury. We currently have no AR barrels chambered for .277 Sig Fury and I am unaware of any manufacturers other than Sig currently making barrels for that cartridge. You can email us at techsales@opticsplanet.com for more information.

by Hunter, Gear Expert, June 6, 2022
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3 Models Available
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Product Info for Proof Research AR-Type Carbon Fiber Barrel

Get a lightweight steel alternative that won't weigh you down with a Proof Research AR-Type Carbon Fiber Barrel. With these by Proof Research, you get increased barrel life, extreme accuracy, and superior durability all in one device. Also, this Proof Research AR-Type Carbon Fiber Barrel is up to 64% lighter than traditional steel barrels of similar contour, and that's significant enough to boost your shot velocity by a factor of two. The stronger full length steel barrels will deliver much more reliable results as well, but the carbon fiber barrel will save you a bundle on ammo. Also, you can reuse these carbon fiber barrels for years to come so that you can pass them down to future generations. Pick up the Proof Research Carbon Fiber Barrel today to see how research-grade carbon fiber can improve your shooting game.image

Specifications for Proof Research AR-Type Carbon Fiber Barrel:

Manufacturer: Proof Research
Fabric/Material: Carbon Fiber
Gun Make: AR Platform
Condition: New
Firearms Threads Per Inch: 5/8x24

Features of Proof Research AR-Type Carbon Fiber Barrel

  • Up to 64% lighter than traditional steel barrels of similar contour.

Package Contents:

  • Proof Research AR-Type Carbon Fiber Barrel

Proof Research AR-Type Carbon Fiber Barrel Orderable Models

List of Orderable Models

  • Proof Research AR-Type Barrel, Carbon Fiber, .308 WIN, 16 inch, Intermediate Length, 1/10 Twist, 5/8-24 Thread, Black, 101261 , MPN: 101261 , UPC: 843068101261 , Code: 2SB-ATB-ARCFBRL-101261
  • Proof Research AR Type Carbon Fiber Barrel, 6.5 Grendel, 18in, 8 Twist, .750 Gas Journal Diameter, 5/8-24 Thread, 121665 , MPN: 121665 , UPC: 843068121665 , Code: 2SB-ATB-ARCFBRL-121665
  • Proof Research AR-Type Barrel, Carbon Fiber, 6 CM, 22 inch, Rifle+3 Length, 1/7.5 Twist, 5/8-24 Thread, Black, 112632 , MPN: 112632 , UPC: 843068112632 , Code: 2SB-ATB-ARCFBRL-112632

Proof Research AR-Type Carbon Fiber Barrel Unavailable & Discontinued Models

List of Unorderable Models

  • USED Proof Research AR-Type Barrel, Carbon Fiber, .224 Valkyrie, 20 inch, Rifle+1 Length, 1/7 Twist, 1/2-28 Thread, Black, 110287, EDEMO1, Used, Condition Fair , MPN: 110287-EDEMO1 , Code: 2SB-ATB-ARCFBRL-110287-EDEMO1
  • Proof Research AR Type Carbon Fiber Barrel, 450 Bushmaster, 16in, 16 Twist, Mid, .875 Gas Journal Diameter, 11/16-24 Thread, 119617 , MPN: 119617 , UPC: 843068119617 , Code: 2SB-ATB-ARCFBRL-119617
  • Proof Research AR Type Carbon Fiber Barrel, 450 Bushmaster, 18in, 16 Twist, Mid, .875 Gas Journal Diameter, 11/16-24 Thread, 119631 , MPN: 119631 , UPC: 843068119631 , Code: 2SB-ATB-ARCFBRL-119631
  • Proof Research AR Type Carbon Fiber Barrel, 350 Legend, 16in, 16 Twist, Carbine, .750 Gas Journal Diameter, 5/8-24 Thread, 119655 , MPN: 119655 , UPC: 843068119655 , Code: 2SB-ATB-ARCFBRL-119655
  • Proof Research AR Type Carbon Fiber Barrel, 350 Legend, 16in, 16 Twist, Mid, .750 Gas Journal Diameter, 5/8-24 Thread, 119679 , MPN: 119679 , UPC: 843068119679 , Code: 2SB-ATB-ARCFBRL-119679
  • Proof Research AR Type Carbon Fiber Barrel, 6.5 Grendel, 20in, 8 Twist, .750 Gas Journal Diameter, 5/8-24 Thread, 121672 , MPN: 121672 , UPC: 843068121672 , Code: 2SB-ATB-ARCFBRL-121672
  • Proof Research AR-Type Barrel, Carbon Fiber, 6.8 SPC, 18 inch, Rifle Length, 1/10 Twist, 5/8-24 Thread, Black, 110249 , MPN: 110249 , UPC: 843068110249 , Code: 2SB-ATB-ARCFBRL-110249
  • Proof Research AR Type Carbon Fiber Barrel, 6.5 Grendel, 18in, 8 Twist, .875 Gas Journal Diameter, 5/8-24 Thread, 101995 , MPN: 101995 , UPC: 843068101995 , Code: 2SB-ATB-ARCFBRL-101995
  • Proof Research AR Type Carbon Fiber Barrel, 6.8 SPC, 16in, 10 Twist, Mid, .750 Gas Journal Diameter, 5/8-24 Thread, 115305 , MPN: 115305 , UPC: 843068115305 , Code: 2SB-ATB-ARCFBRL-115305
  • Proof Research AR Type Carbon Fiber Barrel, 6.8 SPC, 18in, 10 Twist, Mid, .750 Gas Journal Diameter, 5/8-24 Thread, 115329 , MPN: 115329 , UPC: 843068115329 , Code: 2SB-ATB-ARCFBRL-115329
  • Proof Research AR-Type Barrel, Carbon Fiber, .224 Valkyrie, 22 inch, Rifle+1 Length, 1/7 Twist, 1/2-28 Thread, Black, 110294 , MPN: 110294 , UPC: 843068110294 , Code: 2SB-ATB-ARCFBRL-110294
  • Proof Research AR-Type Barrel, Carbon Fiber, .224 Valkyrie, 18 inch, Rifle Length, 1/7 Twist, 1/2-28 Thread, Black, 110263 , MPN: 110263 , UPC: 843068110263 , Code: 2SB-ATB-ARCFBRL-110263
  • Proof Research AR-Type Barrel, Carbon Fiber, 6 CM, 24 inch, Rifle+3 Length, 1/7.5 Twist, 5/8-24 Thread, Black, 112649 , MPN: 112649 , UPC: 843068112649 , Code: 2SB-ATB-ARCFBRL-112649
  • Proof Research AR-Type Barrel, Carbon Fiber, .224 Valkyrie, 20 inch, Rifle+1 Length, 1/7 Twist, 1/2-28 Thread, Black, 110287 , MPN: 110287 , UPC: 843068110287 , Code: 2SB-ATB-ARCFBRL-110287
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