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Lone Peak Arms Pre-Fit Barrels

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DESIGNED FOR THE ENTHUSIAST

PROOF Research pre-fit carbon fiber & steel barrels are designed to fit the Fuzion, Fuzion Ti, Razor & Razor Ti actions from Lone Peak Arms. Your barrel will arrive chambered/threaded and ready to be installed in a simple operation requiring few specialized tools. Simply torque your barrel on using the proper action wrench and torque setting, double check headspace with proper gauges and head to the range! Our Lone Peak Arms pre-fit barrels are here to deliver extreme accuracy, performance and reliability.

DISCLAIMER:
- Some older actions (made before Fall 2019) do not have timed threads and headspace may vary slightly. It is recommended to double check headspace after the barrel is installed.
- Due to variance in actions we do not guarantee the timing and alignment of the barrel engraving to your stock line.

How to install a shouldered pre-fit barrel

Lone Peak Arms 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

  • 223 Rem
  • 6 CM
  • 6.5 CM
  • 6.5 PRC
  • 7 PRC
  • 308 Win
  • 300 Win Mag
  • 300 PRC
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
133811 20 8 5/8-24 Sendero 2lbs-11oz $1,049
Diagram
Part Number 133811
Barrel Length in Inches 20
Twist Rate 8
Muzzle Thread 5/8-24
Contour Sendero
Weight 2lbs-11oz
MSRP $1,049
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
133286 22 7.5 5/8-24 Sendero 2lbs-14oz $1,049
Diagram
Part Number 133286
Barrel Length in Inches 22
Twist Rate 7.5
Muzzle Thread 5/8-24
Contour Sendero
Weight 2lbs-14oz
MSRP $1,049
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
133309 24 7.5 5/8-24 Sendero 3lbs-0oz $1,049
Diagram
Part Number 133309
Barrel Length in Inches 24
Twist Rate 7.5
Muzzle Thread 5/8-24
Contour Sendero
Weight 3lbs-0oz
MSRP $1,049
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
133293 22 8 5/8-24 Sendero 2lbs-14oz $1,049
Diagram
Part Number 133293
Barrel Length in Inches 22
Twist Rate 8
Muzzle Thread 5/8-24
Contour Sendero
Weight 2lbs-14oz
MSRP $1,049
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
133316 24 8 5/8-24 Sendero 3lbs-0oz $1,049
Diagram
Part Number 133316
Barrel Length in Inches 24
Twist Rate 8
Muzzle Thread 5/8-24
Contour Sendero
Weight 3lbs-0oz
MSRP $1,049
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
137291 22 7.5 5/8-24 Sendero 2lbs-11oz $1,049
Diagram
Part Number 137291
Barrel Length in Inches 22
Twist Rate 7.5
Muzzle Thread 5/8-24
Contour Sendero
Weight 2lbs-11oz
MSRP $1,049
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
133323 24 7.5 5/8-24 Sendero 3lbs-0oz $1,049
Diagram
Part Number 133323
Barrel Length in Inches 24
Twist Rate 7.5
Muzzle Thread 5/8-24
Contour Sendero
Weight 3lbs-0oz
MSRP $1,049
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
136577 22 8 5/8-24 Sendero 2lbs-11oz $1,049
Diagram
Part Number 136577
Barrel Length in Inches 22
Twist Rate 8
Muzzle Thread 5/8-24
Contour Sendero
Weight 2lbs-11oz
MSRP $1,049
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
134719 24 8 5/8-24 Sendero 2lbs-15oz $1,049
Diagram
Part Number 134719
Barrel Length in Inches 24
Twist Rate 8
Muzzle Thread 5/8-24
Contour Sendero
Weight 2lbs-15oz
MSRP $1,049
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
133279 20 10 5/8-24 Sendero 2lbs-11oz $1,049
Diagram
Part Number 133279
Barrel Length in Inches 20
Twist Rate 10
Muzzle Thread 5/8-24
Contour Sendero
Weight 2lbs-11oz
MSRP $1,049
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
133361 24 10 5/8-24 Sendero 2lbs-14oz $1,049
Diagram
Part Number 133361
Barrel Length in Inches 24
Twist Rate 10
Muzzle Thread 5/8-24
Contour Sendero
Weight 2lbs-14oz
MSRP $1,049
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
137321 22 9 5/8-24 Sendero 2lbs-10oz $1,049
Diagram
Part Number 137321
Barrel Length in Inches 22
Twist Rate 9
Muzzle Thread 5/8-24
Contour Sendero
Weight 2lbs-10oz
MSRP $1,049
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
133347 24 9 5/8-24 Sendero 2lbs-14oz $1,049
Diagram
Part Number 133347
Barrel Length in Inches 24
Twist Rate 9
Muzzle Thread 5/8-24
Contour Sendero
Weight 2lbs-14oz
MSRP $1,049
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.

Lone Peak Arms 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

  • 223 Rem
  • 6 Dasher
  • 6 GT
  • 6 CM
  • 6.5 CM
  • 6.5 PRC
  • 308 Win
  • 7 PRC
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
133217 26 7 5/8-24 Competition 7lbs-5oz $649
Diagram
Part Number 133217
Barrel Length in Inches 26
Twist Rate 7
Muzzle Thread 5/8-24
Contour Competition
Weight 7lbs-5oz
MSRP $649
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
133224 26 7.5 5/8-24 Competition 7lbs-5oz $649
Diagram
Part Number 133224
Barrel Length in Inches 26
Twist Rate 7.5
Muzzle Thread 5/8-24
Contour Competition
Weight 7lbs-5oz
MSRP $649
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
133538 26 7.5 5/8-24 Competition 7lbs-5oz $649
Diagram
Part Number 133538
Barrel Length in Inches 26
Twist Rate 7.5
Muzzle Thread 5/8-24
Contour Competition
Weight 7lbs-5oz
MSRP $649
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
133231 26 7.5 5/8-24 Competition 7lbs-5oz $649
Diagram
Part Number 133231
Barrel Length in Inches 26
Twist Rate 7.5
Muzzle Thread 5/8-24
Contour Competition
Weight 7lbs-5oz
MSRP $649
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
133248 26 8 5/8-24 Competition 7lbs-5oz $649
Diagram
Part Number 133248
Barrel Length in Inches 26
Twist Rate 8
Muzzle Thread 5/8-24
Contour Competition
Weight 7lbs-5oz
MSRP $649
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
133262 26 7.5 5/8-24 Competition 7lbs-5oz $649
Diagram
Part Number 133262
Barrel Length in Inches 26
Twist Rate 7.5
Muzzle Thread 5/8-24
Contour Competition
Weight 7lbs-5oz
MSRP $649
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
133255 26 10 5/8-24 Competition 7lbs-5oz $649
Diagram
Part Number 133255
Barrel Length in Inches 26
Twist Rate 10
Muzzle Thread 5/8-24
Contour Competition
Weight 7lbs-5oz
MSRP $649
Diagram
Part Number Barrel Length in Inches Twist Rate Muzzle Thread Contour Weight MSRP
138434 26 8 5/8-24 Competition 7lbs-6oz $649
Diagram
Part Number 138434
Barrel Length in Inches 26
Twist Rate 8
Muzzle Thread 5/8-24
Contour Competition
Weight 7lbs-6oz
MSRP $649
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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