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Q Fix & Mini Fix Pre-Fit Barrels

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DESIGNED FOR THE ENTHUSIAST

When PROOF Research was formed in 2012, our vision was both simple and extraordinary. Our truly innovative founders envisioned a company that would apply advanced science, new technologies, aerospace-grade materials and manufacturing excellence to produce a new class of products that would truly revolutionize the firearms industry. Our pre-fit barrels exemplify our founders’ pursuit of relentless excellence.

Our Q Fix & Mini Fix Pre-Fit carbon fiber barrels are available in select calibers, lengths and twists. Your pre-fit barrel will arrive chambered and include the barrel extension for proper installation.

Q Fix & Mini Fix 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
  • 22 CM
  • 6 CM
  • 6.5 CM
  • 300 BLK
  • 308 Win
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread MSRP
133415 Mini Fix 12.75 7 5/8-24 $1,199
Diagram
Part Number 133415
Model Mini Fix
Barrel Length in Inches 12.75
Twist Rate 7
Muzzle Thread 5/8-24
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread MSRP
133422 Mini Fix 16 7 5/8-24 $1,199
Diagram
Part Number 133422
Model Mini Fix
Barrel Length in Inches 16
Twist Rate 7
Muzzle Thread 5/8-24
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread Weight MSRP
129258 Fix 18 8 5/8-24 2lbs-3oz $1,199
Diagram
Part Number 129258
Model Fix
Barrel Length in Inches 18
Twist Rate 8
Muzzle Thread 5/8-24
Weight 2lbs-3oz
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread Weight MSRP
129272 Fix 20 8 5/8-24 2lbs-8oz $1,199
Diagram
Part Number 129272
Model Fix
Barrel Length in Inches 20
Twist Rate 8
Muzzle Thread 5/8-24
Weight 2lbs-8oz
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread Weight MSRP
119983 Fix 22 8 5/8-24 2lbs-11oz $1,199
Diagram
Part Number 119983
Model Fix
Barrel Length in Inches 22
Twist Rate 8
Muzzle Thread 5/8-24
Weight 2lbs-11oz
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread Weight MSRP
129241 Fix 18 7.5 5/8-24 2lbs-5oz $1,199
Diagram
Part Number 129241
Model Fix
Barrel Length in Inches 18
Twist Rate 7.5
Muzzle Thread 5/8-24
Weight 2lbs-5oz
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread Weight MSRP
129265 Fix 20 7.5 5/8-24 2lbs-8oz $1,199
Diagram
Part Number 129265
Model Fix
Barrel Length in Inches 20
Twist Rate 7.5
Muzzle Thread 5/8-24
Weight 2lbs-8oz
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread Weight MSRP
114544 Fix 22 7.5 5/8-24 2lbs-11oz $1,199
Diagram
Part Number 114544
Model Fix
Barrel Length in Inches 22
Twist Rate 7.5
Muzzle Thread 5/8-24
Weight 2lbs-11oz
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread Weight MSRP
114551 Fix 24 7.5 5/8-24 2lbs-15oz $1,199
Diagram
Part Number 114551
Model Fix
Barrel Length in Inches 24
Twist Rate 7.5
Muzzle Thread 5/8-24
Weight 2lbs-15oz
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread Weight MSRP
123515 Fix 16 7 5/8-24 2lbs-3oz $1,199
Diagram
Part Number 123515
Model Fix
Barrel Length in Inches 16
Twist Rate 7
Muzzle Thread 5/8-24
Weight 2lbs-3oz
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread Weight MSRP
129234 Fix 18 8 5/8-24 2lbs-5oz $1,199
Diagram
Part Number 129234
Model Fix
Barrel Length in Inches 18
Twist Rate 8
Muzzle Thread 5/8-24
Weight 2lbs-5oz
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread Weight MSRP
114537 Fix 20 8 5/8-24 2lbs-8oz $1,199
Diagram
Part Number 114537
Model Fix
Barrel Length in Inches 20
Twist Rate 8
Muzzle Thread 5/8-24
Weight 2lbs-8oz
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread Weight MSRP
129289 Fix 22 8 5/8-24 2lbs-11oz $1,199
Diagram
Part Number 129289
Model Fix
Barrel Length in Inches 22
Twist Rate 8
Muzzle Thread 5/8-24
Weight 2lbs-11oz
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread Weight MSRP
129296 Fix 24 8 5/8-24 2lbs-15oz $1,199
Diagram
Part Number 129296
Model Fix
Barrel Length in Inches 24
Twist Rate 8
Muzzle Thread 5/8-24
Weight 2lbs-15oz
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread MSRP
133729 Mini Fix 12.75 7 5/8-24 $1,199
Diagram
Part Number 133729
Model Mini Fix
Barrel Length in Inches 12.75
Twist Rate 7
Muzzle Thread 5/8-24
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread MSRP
133736 Mini Fix 16 8 5/8-24 $1,199
Diagram
Part Number 133736
Model Mini Fix
Barrel Length in Inches 16
Twist Rate 8
Muzzle Thread 5/8-24
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread Weight MSRP
114506 Fix 16 10 5/8-24 2lbs-0oz $1,199
Diagram
Part Number 114506
Model Fix
Barrel Length in Inches 16
Twist Rate 10
Muzzle Thread 5/8-24
Weight 2lbs-0oz
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread Weight MSRP
114513 Fix 18 10 5/8-24 2lbs-3oz $1,199
Diagram
Part Number 114513
Model Fix
Barrel Length in Inches 18
Twist Rate 10
Muzzle Thread 5/8-24
Weight 2lbs-3oz
MSRP $1,199
Diagram
Part Number Model Barrel Length in Inches Twist Rate Muzzle Thread Weight MSRP
114520 Fix 20 10 5/8-24 2lbs-6oz $1,199
Diagram
Part Number 114520
Model Fix
Barrel Length in Inches 20
Twist Rate 10
Muzzle Thread 5/8-24
Weight 2lbs-6oz
MSRP $1,199
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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