+1-800-504-5897 Help Center Check Order Status
About Us Policies Reviews How To
Free Shipping & Free Returns*

FREE SHIPPING on Over 250,000 Products

Shop now and get Free Value Shipping on most orders over $49 to the contiguous 48 states, DC, and to all U.S. Military APO/FPO/DPO addresses.

Enjoy our FREE RETURNS

We want to ensure that making a return is as easy and hassle-free as possible! If for any reason you are not satisfied with your purchase, simply return the item within 30 days of receipt, and we'll cover the cost of return shipping. Learn more about our Return Policy.

  • Entire Store
  • ...
  • Apparel & Footwear
  • Astronomy
  • Everything Else
  • Eyewear
  • Hunting Gear
  • Lab Equipment
  • Military Gear
  • Outdoor Gear
  • Photography Equipment
  • Police, EMS & Fire
  • Shooting
  • Sport Optics
  • Sports & Hobbies
TIP
Shopping Cart

Proof Research Accuracy International Pre-Fit Carbon Fiber Barrel Up to $100.00 Off Plus Coupon Available w/ Free S&H — 30 models

08:01
Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 338 Lapua, 26 inch, 1/9.4 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109373
1 of 1 videos
Proof Research Brand Video
Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 338 Lapua, 26 inch, 1/9.4 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109373
1 of 1 images
Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 338 Lapua, 26 inch, 1/9.4 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109373

Tap Tap to Zoom

Government Export Restriction Government Export Restriction
Questions & Answers
I have an Accuracy International AT-X 6.5 CM do I need the 27mm or the 30mm model? Manufacturer Answer

AX308 / AX SA / AT / AW / AE Short / AT-X / AT-XC = 27mm

by Proof Research, Manufacturer, December 18, 2024
Will this fit the AXSR ? Expert Answer

The Proof Research Accuracy International Pre-Fit Carbon Fiber Barrels for the Accuracy International AX models should work with the AXSR.

by Hunter, Gear Expert, October 9, 2023
View All Q&A You Have a Question? Ask!
Customer Reviews
Most Recent Reviews
Awesome quality as usual. best barrel made by James Marshall, Verified Owner, January 10, 2026
These proof barrels are super high quality, light and are super forgiving they shoot about any match ammo brand lights out. Making hand loads optional
Read 1 Review

Come In & Grab 15% Off A Wide Variety Of Gear!!

See promotion details.
Eligible models will have a savings offer. Apply coupon and add the item to your cart for savings on that select model! Limited time only. Cannot be combined with other promotions or offers.
Show In Stock Only
30 Models Available

Show with deals only:

Coupon Available
Gun Model
All
Weight
All
Caliber
All
Barrel Length
All
Barrel Twist Rate
All
Barrel Breech Thread
All
Barrel Material
All
Projectile Caliber
All
Search
Click to select this item for your bundle offer!

Buy Together and Save

As low as $1,307.99
You Save Up to $116.00
OP Bucks$25.98
Some discounts may not apply to bundled purchases

Product Info for Proof Research Accuracy International Pre-Fit Carbon Fiber Barrel

You need a barrel that will hold up under extreme operation conditions. You also need a barrel that will perform in extreme heat or cold. The PROOF ACCURACY INTERNATIONAL Pre-Fit Carbon Fiber Barrel is the solution for creating a top-quality gun barrel that will allow you to shoot much more than you ever thought possible. The combination of aerospace-grade carbon fiber and pre-hardened 416R stainless steel offers unparalleled performance in any situation, and these are pre-fitted, meaning they are ready to go out of the box and put on your guns. The PROOF Accuriance International Pre-Fit Carbon Fiber Barrel requires no thresh-grinding, which means that there is no burr or rough spot to ruin your shot.image

Specifications for Proof Research Accuracy International Pre-Fit Carbon Fiber Barrel:

Manufacturer: Proof Research
Color: Black
Threads per Inch: 5/8x24
Gun Make: Accuracy International
Condition: New

Package Contents:

  • Proof Research Accuracy International Pre-Fit Carbon Fiber Barrel

What firearm models does the manufacturer say Proof Research Accuracy International Pre-Fit Carbon Fiber Barrel is compatible with?

The manufacturer says that Proof Research Accuracy International Pre-Fit Carbon Fiber Barrel is compatible with Accuracy International AT, Accuracy International AX

Proof Research Accuracy International Pre-Fit Carbon Fiber Barrel Orderable Models

List of Orderable Models

  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 308 Win, 16.5 inch, 1/10 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 109298 , MPN: 109298 , UPC: 843068109298 , Code: 2SB-BAB-ACYCFBRL-109298
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 PRC, 26 inch, 1/8 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 111833 , MPN: 111833 , UPC: 843068111833 , Code: 2SB-BAB-ACYCFBRL-111833
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 Win, 20 inch, 1/10 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109243 , MPN: 109243 , UPC: 843068109243 , Code: 2SB-BAB-ACYCFBRL-109243
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 Norma, 20 inch, 1/9 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109182 , MPN: 109182 , UPC: 843068109182 , Code: 2SB-BAB-ACYCFBRL-109182
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 6.5 CM, 24 inch, 1/8 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109427 , MPN: 109427 , UPC: 843068109427 , Code: 2SB-BAB-ACYCFBRL-109427
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 Win, 26 inch, 1/10 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 109274 , MPN: 109274 , UPC: 843068109274 , Code: 2SB-BAB-ACYCFBRL-109274
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 308 Win, 18.5 inch, 1/10 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109304 , MPN: 109304 , UPC: 843068109304 , Code: 2SB-BAB-ACYCFBRL-109304
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 6 CM, 24 inch, 1/7.5 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 109458 , MPN: 109458 , UPC: 843068109458 , Code: 2SB-BAB-ACYCFBRL-109458
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 6.5 CM, 24 inch, 1/8 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 109410 , MPN: 109410 , UPC: 843068109410 , Code: 2SB-BAB-ACYCFBRL-109410
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 Norma, 26 inch, 1/9 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 109212 , MPN: 109212 , UPC: 843068109212 , Code: 2SB-BAB-ACYCFBRL-109212
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 Norma, 24 inch, 1/9 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109205 , MPN: 109205 , UPC: 843068109205 , Code: 2SB-BAB-ACYCFBRL-109205
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 338 Norma, 26 inch, 1/9.4 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109397 , MPN: 109397 , UPC: 843068109397 , Code: 2SB-BAB-ACYCFBRL-109397
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 338 Lapua, 26 inch, 1/9.4 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109373 , MPN: 109373 , UPC: 843068109373 , Code: 2SB-BAB-ACYCFBRL-109373
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 Norma, 20 inch, 1/9 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 109175 , MPN: 109175 , UPC: 843068109175 , Code: 2SB-BAB-ACYCFBRL-109175
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 308 Win, 20 inch, 1/10 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109328 , MPN: 109328 , UPC: 843068109328 , Code: 2SB-BAB-ACYCFBRL-109328
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 Win, 26 inch, 1/10 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109281 , MPN: 109281 , UPC: 843068109281 , Code: 2SB-BAB-ACYCFBRL-109281
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 6.5 PRC, 24 inch, 1/7.5 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 112939 , MPN: 112939 , UPC: 843068112939 , Code: 2SB-BAB-ACYCFBRL-112939
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 Norma, 24 inch, 1/9 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 109199 , MPN: 109199 , UPC: 843068109199 , Code: 2SB-BAB-ACYCFBRL-109199
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 PRC, 26 inch, 1/9 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 113134 , MPN: 113134 , UPC: 843068113134 , Code: 2SB-BAB-ACYCFBRL-113134
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 PRC, 26 inch, 1/9 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 113141 , MPN: 113141 , UPC: 843068113141 , Code: 2SB-BAB-ACYCFBRL-113141
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 Win, 24 inch, 1/10 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109267 , MPN: 109267 , UPC: 843068109267 , Code: 2SB-BAB-ACYCFBRL-109267
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 Win, 24 inch, 1/10 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 109250 , MPN: 109250 , UPC: 843068109250 , Code: 2SB-BAB-ACYCFBRL-109250
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 308 Win, 20 inch, 1/10 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 109311 , MPN: 109311 , UPC: 843068109311 , Code: 2SB-BAB-ACYCFBRL-109311
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 6.5 PRC, 24 inch, 1/7.5 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 112946 , MPN: 112946 , UPC: 843068112946 , Code: 2SB-BAB-ACYCFBRL-112946
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 PRC, 26 inch, 1/8 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 111840 , MPN: 111840 , UPC: 843068111840 , Code: 2SB-BAB-ACYCFBRL-111840
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 Win, 20 inch, 1/10 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 109236 , MPN: 109236 , UPC: 843068109236 , Code: 2SB-BAB-ACYCFBRL-109236
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 6 CM, 24 inch, 1/7.5 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109465 , MPN: 109465 , UPC: 843068109465 , Code: 2SB-BAB-ACYCFBRL-109465
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 338 Lapua, 28 inch, 1/9.4 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109380 , MPN: 109380 , UPC: 843068109380 , Code: 2SB-BAB-ACYCFBRL-109380
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 Norma, 26 inch, 1/9 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109229 , MPN: 109229 , UPC: 843068109229 , Code: 2SB-BAB-ACYCFBRL-109229
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 338 Norma, 28 inch, 1/9.4 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109403 , MPN: 109403 , UPC: 843068109403 , Code: 2SB-BAB-ACYCFBRL-109403

Proof Research Accuracy International Pre-Fit Carbon Fiber Barrel Unavailable & Discontinued Models

List of Unorderable Models

  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 308 Win, 26 inch, 1/10 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109366 , MPN: 109366 , UPC: 843068109366 , Code: 2SB-BAB-ACYCFBRL-109366
  • USED, Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 Norma, 26 inch, 1/9 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 109212 , MPN: 109212-EDEMO , Code: 2SB-BAB-ACYCFBRL-109212-EDEMO-RE-C
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 6.5x47, 24 inch, 1/8 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 109434 , MPN: 109434 , UPC: 843068109434 , Code: 2SB-BAB-ACYCFBRL-109434
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, .243 Win, 24 inch, 1/7.5 Twist, 4/8x24 Thread, M27 Breech Thread, Black, 109137 , MPN: 109137 , UPC: 843068109137 , Code: 2SB-BAB-ACYCFBRL-109137
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 308 Win, 26 inch, 1/10 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 109359 , MPN: 109359 , UPC: 843068109359 , Code: 2SB-BAB-ACYCFBRL-109359
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 6.5x47, 24 inch, 1/8 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109441 , MPN: 109441 , UPC: 843068109441 , Code: 2SB-BAB-ACYCFBRL-109441
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 260 REM, 24 inch, 1/8 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109168 , MPN: 109168 , UPC: 843068109168 , Code: 2SB-BAB-ACYCFBRL-109168
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, .243 Win, 24 inch, 1/7.5 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109144 , MPN: 109144 , UPC: 843068109144 , Code: 2SB-BAB-ACYCFBRL-109144
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 308 Win, 24 inch, 1/10 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 109335 , MPN: 109335 , UPC: 843068109335 , Code: 2SB-BAB-ACYCFBRL-109335
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 308 Win, 24 inch, 1/10 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109342 , MPN: 109342 , UPC: 843068109342 , Code: 2SB-BAB-ACYCFBRL-109342
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 260 REM, 24 inch, 1/8 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 109151 , MPN: 109151 , UPC: 843068109151 , Code: 2SB-BAB-ACYCFBRL-109151
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 6 CM, 26 inch, 1/7.5 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109472 , MPN: 109472 , UPC: 843068109472 , Code: 2SB-BAB-ACYCFBRL-109472
  • USED, Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 6.5 CM, 24 inch, 1/8 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 109410 , MPN: 109410-EDEMO , Code: 2SB-BAB-ACYCFBRL-109410-EDEMO-RE-B
  • Open Box, Dealer Demo, Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 300 Norma, 26 inch, 1/9 Twist, 5/8x24 Thread, M27 Breech Thread, Black, 109212 , MPN: 109212-DMO , Code: 2SB-BAB-ACYCFBRL-109212-DMO
  • Open Box, Dealer Demo, Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 338 Lapua, 28 inch, 1/9.4 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109380 , MPN: 109380-DMO , Code: 2SB-BAB-ACYCFBRL-109380-DMO
  • Proof Research Accuracy International Pre-Fit Barrel, Carbon Fiber, 7mm Rem, 26 inch, 1/9 Twist, 5/8x24 Thread, M30 Breech Thread, Black, 109489 , MPN: 109489 , UPC: 843068109489 , Code: 2SB-BAB-ACYCFBRL-109489
  • Proof Research Accuracy International Pre Fit Barrel, Carbon Fiber, 7 SAUM, 24in, 8.4 Twist, 5/8-24 Thread, 123607 , MPN: 123607 , UPC: 843068123607 , Code: 2SB-BAB-ACYCFBRL-123607
Compare (0)
1 item has been added
Add at least two items to compare