Industry Leading

Accuracy International Pre-Fit Barrels

DESIGNED FOR THE ENTHUSIAST

Accuracy International Chassis Systems bring ergonomic and functional benefits that are delivered with degrees of modularity and configurability that cannot be achieved with any traditional stock. AI pre-fits are available for both 27mm and 30mm tenon sizes.

PROOF Research Pre-Fit Accuracy International barrels are quick and easy to install on the AI platform and require no specialized gunsmithing. Our drop-in barrels for the AI chassis come threaded and chambered in a variety of different lengths and twist rates.

Accuracy International Pre-Fit

Carbon Fiber

Lightweight

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

Extreme Temperature Resistance

Improved heat dissipation for cooler and longer lasting barrels.

Unprecedented Durability

Wrapped with high-strength, aerospace-grade carbon fiber impregnated with a proprietary matrix resin.

Check Compatibility

Choose your Caliber

  • 6 CM
  • 6.5 CM
  • 6.5 PRC
  • 7 SAUM
  • 7 PRC
  • 308 Win
  • 300 Win Mag
  • 300 PRC
  • 300 Norma
  • 338 Lapua
  • 338 Norma
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109465 24 7.5 M30 5/8-24 AXMC 3lbs-13oz $1,399
Diagram
Part Number 109465
Barrel Length in Inches 24
Twist Rate 7.5
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-13oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109458 24 7.5 M27 5/8-24 AX308/AT/AW/AE SA 3lbs-4oz $1,399
Diagram
Part Number 109458
Barrel Length in Inches 24
Twist Rate 7.5
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX308/AT/AW/AE SA
Weight 3lbs-4oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109410 24 8 M27 5/8-24 AX308/AT/AW/AE SA 3lbs-4oz $1,399
Diagram
Part Number 109410
Barrel Length in Inches 24
Twist Rate 8
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX308/AT/AW/AE SA
Weight 3lbs-4oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109427 24 8 M30 5/8-24 AXMC 3lbs-12oz $1,399
Diagram
Part Number 109427
Barrel Length in Inches 24
Twist Rate 8
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-12oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRT
112939 24 7.5 M27 5/8-24 AX308/AT/AW/AE SA 3lbs-3oz $1,399
Diagram
Part Number 112939
Barrel Length in Inches 24
Twist Rate 7.5
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX308/AT/AW/AE SA
Weight 3lbs-3oz
MSRT $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
112946 24 7.5 M30 5/8-24 AXMC 3lbs-11oz $1,399
Diagram
Part Number 112946
Barrel Length in Inches 24
Twist Rate 7.5
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-11oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
123607 24 8.4 M30 5/8-24 AXMC 3lbs-9oz $1,399
Diagram
Part Number 123607
Barrel Length in Inches 24
Twist Rate 8.4
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-9oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
134580 24 8 M27 5/8-24 AX/AW LA 3lbs-1oz $1,399
Diagram
Part Number 134580
Barrel Length in Inches 24
Twist Rate 8
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX/AW LA
Weight 3lbs-1oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
134597 24 8 M30 5/8-24 AXMC 3lbs-9oz $1,399
Diagram
Part Number 134597
Barrel Length in Inches 24
Twist Rate 8
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-9oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
134603 26 8 M27 5/8-24 AX/AW LA 3lbs-5oz $1,399
Diagram
Part Number 134603
Barrel Length in Inches 26
Twist Rate 8
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX/AW LA
Weight 3lbs-5oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
134610 26 8 M30 5/8-24 AXMC 3lbs-13oz $1,399
Diagram
Part Number 134610
Barrel Length in Inches 26
Twist Rate 8
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-13oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109298 16.5 10 M27 5/8-24 AX308/AT/AW/AE SA 2lbs-7oz $1,399
Diagram
Part Number 109298
Barrel Length in Inches 16.5
Twist Rate 10
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX308/AT/AW/AE SA
Weight 2lbs-7oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109304 18.5 10 M30 5/8-24 AXMC 2lbs-15oz $1,399
Diagram
Part Number 109304
Barrel Length in Inches 18.5
Twist Rate 10
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 2lbs-15oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109311 20 10 M27 5/8-24 AX308/AT/AE SA 2lbs-11oz $1,399
Diagram
Part Number 109311
Barrel Length in Inches 20
Twist Rate 10
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX308/AT/AE SA
Weight 2lbs-11oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109328 20 10 M30 5/8-24 AXMC 3lbs-2oz $1,399
Diagram
Part Number 109328
Barrel Length in Inches 20
Twist Rate 10
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-2oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109236 20 10 M27 5/8-24 AX/AW LA 2lbs-11oz $1,399
Diagram
Part Number 109236
Barrel Length in Inches 20
Twist Rate 10
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX/AW LA
Weight 2lbs-11oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109243 20 10 M30 5/8-24 AXMC 3lbs-2oz $1,399
Diagram
Part Number 109243
Barrel Length in Inches 20
Twist Rate 10
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-2oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109250 24 10 M27 5/8-24 AX/AW LA 3lbs-1oz $1,399
Diagram
Part Number 109250
Barrel Length in Inches 24
Twist Rate 10
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX/AW LA
Weight 3lbs-1oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109267 24 10 M30 5/8-24 AXMC 3lbs-9oz $1,399
Diagram
Part Number 109267
Barrel Length in Inches 24
Twist Rate 10
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-9oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thrad Rifle Model Weight MSRP
109274 26 10 M27 5/8-24 AX/AW LA 3lbs-5oz $1,399
Diagram
Part Number 109274
Barrel Length in Inches 26
Twist Rate 10
Breech Thread M27
Muzzle Thrad 5/8-24
Rifle Model AX/AW LA
Weight 3lbs-5oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109281 26 10 M30 5/8-24 AXMC 3lbs-13oz $1,399
Diagram
Part Number 109281
Barrel Length in Inches 26
Twist Rate 10
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-13oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
113134 26 9 M27 5/8-24 AX/AW LA 3lbs-5oz $1,399
Diagram
Part Number 113134
Barrel Length in Inches 26
Twist Rate 9
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX/AW LA
Weight 3lbs-5oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
113141 26 9 M30 5/8-24 AXMC 3lbs-13oz $1,399
Diagram
Part Number 113141
Barrel Length in Inches 26
Twist Rate 9
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-13oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
111833 26 8 M27 5/8-24 AX/AW LA 3lbs-5oz $1,399
Diagram
Part Number 111833
Barrel Length in Inches 26
Twist Rate 8
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX/AW LA
Weight 3lbs-5oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
111840 26 8 M30 5/8-24 AXMC 3lbs-13oz $1,399
Diagram
Part Number 111840
Barrel Length in Inches 26
Twist Rate 8
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-13oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109175 20 9 M27 5/8-24 AX/AW LA 2lbs-13oz $1,399
Diagram
Part Number 109175
Barrel Length in Inches 20
Twist Rate 9
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX/AW LA
Weight 2lbs-13oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inche Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109182 20 9 M30 5/8-24 AXMC 3lbs-3oz $1,399
Diagram
Part Number 109182
Barrel Length in Inche 20
Twist Rate 9
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-3oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109199 24 9 M27 5/8-24 AX/AW LA 3lbs-4oz $1,399
Diagram
Part Number 109199
Barrel Length in Inches 24
Twist Rate 9
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX/AW LA
Weight 3lbs-4oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109205 24 9 M30 5/8-24 AXMC 3lbs-11oz $1,399
Diagram
Part Number 109205
Barrel Length in Inches 24
Twist Rate 9
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-11oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109212 26 9 M27 5/8-24 AX/AW LA 3lbs-8oz $1,399
Diagram
Part Number 109212
Barrel Length in Inches 26
Twist Rate 9
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX/AW LA
Weight 3lbs-8oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109229 26 9 M30 5/8-24 AXMC 3lbs-15oz $1,399
Diagram
Part Number 109229
Barrel Length in Inches 26
Twist Rate 9
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-15oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109373 26 9.4 M30 5/8-24 AXMC 3lbs-12oz $1,399
Diagram
Part Number 109373
Barrel Length in Inches 26
Twist Rate 9.4
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-12oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109380 28 9.4 M30 5/8-24 AXMC 4lbs-0oz $1,399
Diagram
Part Number 109380
Barrel Length in Inches 28
Twist Rate 9.4
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 4lbs-0oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109397 26 9.4 M30 5/8-24 AXMC 3lbs-13oz $1,399
Diagram
Part Number 109397
Barrel Length in Inches 26
Twist Rate 9.4
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-13oz
MSRP $1,399
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109403 28 9.4 M30 5/8-24 AXMC 4lbs-0oz $1,399
Diagram
Part Number 109403
Barrel Length in Inches 28
Twist Rate 9.4
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 4lbs-0oz
MSRP $1,399
Diagram
WARNING: PROOF Research does not recommend the use of Copper Creek Cartridge Co. 22 Creedmoor loaded ammunition.
This ammunition is known to be loaded to higher than standard pressures and dangerous conditions may result from its use.

Accuracy International Pre-Fit

Traditional Steel

Long-Lasting

Excellent erosion wear characteristics and corrosion resistance.

Extreme Pressure Resistance

An optimum combination of high tensile strength along with requisite toughness to withstand extreme chamber pressures encountered during firing.

Check Compatibility

Choose your Caliber

  • 6 CM
  • 6.5 CM
  • 6.5 PRC
  • 7 PRC
  • 308 Win
  • 300 Win Mag
  • 338 Lapua
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109694 24 7.5 M27 5/8-24 AX308/AT/AW/AE SA 4lbs-12oz $999
Diagram
Part Number 109694
Barrel Length in Inches 24
Twist Rate 7.5
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX308/AT/AW/AE SA
Weight 4lbs-12oz
MSRP $999
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109700 24 7.5 M30 5/8-24 AXMC 4lbs-11oz $999
Diagram
Part Number 109700
Barrel Length in Inches 24
Twist Rate 7.5
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 4lbs-11oz
MSRP $999
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
110188 24 8 M27 5/8-24 AX308/AT/AW/AE SA 4lbs-11oz $999
Diagram
Part Number 110188
Barrel Length in Inches 24
Twist Rate 8
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX308/AT/AW/AE SA
Weight 4lbs-11oz
MSRP $999
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
110195 24 8 M30 5/8-24 AXMC 4lbs-11oz $999
Diagram
Part Number 110195
Barrel Length in Inches 24
Twist Rate 8
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 4lbs-11oz
MSRP $999
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
112953 24 7.5 M27 5/8-24 AX308/AT/AW/AE SA 4lbs-11oz $999
Diagram
Part Number 112953
Barrel Length in Inches 24
Twist Rate 7.5
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX308/AT/AW/AE SA
Weight 4lbs-11oz
MSRP $999
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
112960 24 7.5 M30 5/8-24 AXMC 4lbs-11oz $999
Diagram
Part Number 112960
Barrel Length in Inches 24
Twist Rate 7.5
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 4lbs-11oz
MSRP $999
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
134627 26 8 M27 5/8-24 AX/AW LA 4lbs-14oz $999
Diagram
Part Number 134627
Barrel Length in Inches 26
Twist Rate 8
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX/AW LA
Weight 4lbs-14oz
MSRP $999
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
134634 26 8 M30 5/8-24 AXMC 4lbs-12oz $999
Diagram
Part Number 134634
Barrel Length in Inches 26
Twist Rate 8
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 4lbs-12oz
MSRP $999
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109656 18.5 10 M30 5/8-24 AXMC 3lbs-12oz $999
Diagram
Part Number 109656
Barrel Length in Inches 18.5
Twist Rate 10
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-12oz
MSRP $999
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109663 20 10 M27 5/8-24 AX308/AT/AW/AE SA 3lbs-14oz $999
Diagram
Part Number 109663
Barrel Length in Inches 20
Twist Rate 10
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX308/AT/AW/AE SA
Weight 3lbs-14oz
MSRP $999
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109625 20 10 M30 5/8-24 AXMC 3lbs-15oz $999
Diagram
Part Number 109625
Barrel Length in Inches 20
Twist Rate 10
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 3lbs-15oz
MSRP $999
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109632 24 10 M27 5/8-24 AX/AW LA 4lbs-9oz $999
Diagram
Part Number 109632
Barrel Length in Inches 24
Twist Rate 10
Breech Thread M27
Muzzle Thread 5/8-24
Rifle Model AX/AW LA
Weight 4lbs-9oz
MSRP $999
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109649 26 10 M30 5/8-24 AXMC 4lbs-13oz $999
Diagram
Part Number 109649
Barrel Length in Inches 26
Twist Rate 10
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 4lbs-13oz
MSRP $999
Diagram
Part Number Barrel Length in Inches Twist Rate Breech Thread Muzzle Thread Rifle Model Weight MSRP
109670 26 9.4 M30 5/8-24 AXMC 4lbs-11oz $999
Diagram
Part Number 109670
Barrel Length in Inches 26
Twist Rate 9.4
Breech Thread M30
Muzzle Thread 5/8-24
Rifle Model AXMC
Weight 4lbs-11oz
MSRP $999
Diagram
WARNING: PROOF Research does not recommend the use of Copper Creek Cartridge Co. 22 Creedmoor loaded ammunition.
This ammunition is known to be loaded to higher than standard pressures and dangerous conditions may result from its use.
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