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Stiller Pre-Fit Barrels

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DESIGNED FOR THE ENTHUSIAST

Our Pre-Fit carbon fiber and steel barrels for the Stiller Wombat, Predator, and Tac line of actions are designed for quick, hassle-free installation with minimal specialized tools. Every PROOF shouldered pre-fit arrive chambered and threaded for an easy install - simply torque the barrel on, verify headspace, and you're ready to shoot!

Built for shot-for-shot accuracy, they deliver outstanding accuracy and performance, making them the perfect upgrade for Stiller action fans.

DISCLAIMER:
Every shouldered pre-fit is guaranteed for proper headspacing.
Please note that due to action variances, we cannot guarantee the barrel engraving's alignment with your stock line.

How to install a shouldered pre-fit barrel

Stiller 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 ARC
  • 22 CM
  • 6 ARC
  • 338 ARC
  • 6 CM
  • 25 CM
  • 6.5 CM
  • 6.5 PRC
  • 7 PRC
  • 7 BC
  • 308 Win
  • 300 WM
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
145654 20 8 Sendero 5/8-24 2lbs-10oz $1,099
Diagram
Part Number 145654
Barrel Length in Inches 20
Twist Rate 8
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-10oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
145661 18 7 Sendero 5/8-24 $1,099
Diagram
Part Number 145661
Barrel Length in Inches 18
Twist Rate 7
Contour Sendero
Muzzle Thread 5/8-24
Weight
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
145678 20 7 Sendero 5/8-24 2lbs-10oz $1,099
Diagram
Part Number 145678
Barrel Length in Inches 20
Twist Rate 7
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-10oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
145685 22 7 Sendero 5/8-24 2lbs-12oz $1,099
Diagram
Part Number 145685
Barrel Length in Inches 22
Twist Rate 7
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-12oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
145692 24 7 Sendero 5/8-24 2lbs-15oz $1,099
Diagram
Part Number 145692
Barrel Length in Inches 24
Twist Rate 7
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-15oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
145708 20 8 Sendero 5/8-24 2lbs-10oz $1,099
Diagram
Part Number 145708
Barrel Length in Inches 20
Twist Rate 8
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-10oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
128749 22 8 Sendero 5/8-24 2lbs-12oz $1,099
Diagram
Part Number 128749
Barrel Length in Inches 22
Twist Rate 8
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-12oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
145715 20 7.5 Sendero 5/8-24 2lbs-10oz $1,099
Diagram
Part Number 145715
Barrel Length in Inches 20
Twist Rate 7.5
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-10oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
145722 22 7.5 Sendero 5/8-24 2lbs-12oz $1,099
Diagram
Part Number 145722
Barrel Length in Inches 22
Twist Rate 7.5
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-12oz
MSRP $1,099
Diagram
Part Number Barrel Length in Interest Twist Rate Contour Muzzle Thread Weight MSRP
145739 16.5 8 Sendero 5/8-24 $1,099
Diagram
Part Number 145739
Barrel Length in Interest 16.5
Twist Rate 8
Contour Sendero
Muzzle Thread 5/8-24
Weight
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
128770 22 7.5 Sendero 5/8-24 2lbs-12oz $1,099
Diagram
Part Number 128770
Barrel Length in Inches 22
Twist Rate 7.5
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-12oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
128961 24 7.5 Sendero 5/8-24 2lbs-15oz $1,099
Diagram
Part Number 128961
Barrel Length in Inches 24
Twist Rate 7.5
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-15oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
145746 22 7.5 Sendero 5/8-24 2lbs-12oz $1,099
Diagram
Part Number 145746
Barrel Length in Inches 22
Twist Rate 7.5
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-12oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
145753 24 7.5 Sendero 5/8-24 2lbs-15oz $1,099
Diagram
Part Number 145753
Barrel Length in Inches 24
Twist Rate 7.5
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-15oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
128763 22 7.5 Sendero 5/8-24 2lbs-12oz $1,099
Diagram
Part Number 128763
Barrel Length in Inches 22
Twist Rate 7.5
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-12oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
128947 24 8 Sendero 5/8-24 2lbs-15oz $1,099
Diagram
Part Number 128947
Barrel Length in Inches 24
Twist Rate 8
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-15oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
145760 22 7.5 Sendero 5/8-24 2lbs-12oz $1,099
Diagram
Part Number 145760
Barrel Length in Inches 22
Twist Rate 7.5
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-12oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
128954 24 7.5 Sendero 5/8-24 2lbs-15oz $1,099
Diagram
Part Number 128954
Barrel Length in Inches 24
Twist Rate 7.5
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-15oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
145777 22 8 Sendero 5/8-24 2lbs-12oz $1,099
Diagram
Part Number 145777
Barrel Length in Inches 22
Twist Rate 8
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-12oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
134795 24 8 Sendero 5/8-24 2lbs-15oz $1,099
Diagram
Part Number 134795
Barrel Length in Inches 24
Twist Rate 8
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-15oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
145944 20 8 Sendero 5/8-24 2lbs-10oz $1,099
Diagram
Part Number 145944
Barrel Length in Inches 20
Twist Rate 8
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-10oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
128718 20 10 Sendero 5/8-24 2lbs-10oz $1,099
Diagram
Part Number 128718
Barrel Length in Inches 20
Twist Rate 10
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-10oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
145784 22 9 Sendero 5/8-24 2lbs-12oz $1,099
Diagram
Part Number 145784
Barrel Length in Inches 22
Twist Rate 9
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-12oz
MSRP $1,099
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
128831 24 9 Sendero 5/8-24 2lbs-15oz $1,099
Diagram
Part Number 128831
Barrel Length in Inches 24
Twist Rate 9
Contour Sendero
Muzzle Thread 5/8-24
Weight 2lbs-15oz
MSRP $1,099
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.

Stiller 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
  • 22 CM
  • 6 ARC
  • 6 Dasher
  • 6 GT
  • 6 CM
  • 25 CM
  • 6.5 CM
  • 6.5 PRC
  • 7 PRC
  • 308 Win
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
129050 26 7 Competition 5/8-24 7lbs-5oz $749
Diagram
Part Number 129050
Barrel Length in Inches 26
Twist Rate 7
Contour Competition
Muzzle Thread 5/8-24
Weight 7lbs-5oz
MSRP $749
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
143551 26 8 Competition 5/8-24 7lbs-5oz $749
Diagram
Part Number 143551
Barrel Length in Inches 26
Twist Rate 8
Contour Competition
Muzzle Thread 5/8-24
Weight 7lbs-5oz
MSRP $749
Diagram
Part Number Barrel Blank in Inches Twist Rate Contour Muzzle Thread Weight MSRP
145791 26 7.5 Competition 5/8-24 7lbs-5oz $749
Diagram
Part Number 145791
Barrel Blank in Inches 26
Twist Rate 7.5
Contour Competition
Muzzle Thread 5/8-24
Weight 7lbs-5oz
MSRP $749
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
129098 26 7.5 Competition 5/8-24 7lbs-5oz $749
Diagram
Part Number 129098
Barrel Length in Inches 26
Twist Rate 7.5
Contour Competition
Muzzle Thread 5/8-24
Weight 7lbs-5oz
MSRP $749
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
134160 26 7.5 Competition 5/8-24 7lbs-5oz $749
Diagram
Part Number 134160
Barrel Length in Inches 26
Twist Rate 7.5
Contour Competition
Muzzle Thread 5/8-24
Weight 7lbs-5oz
MSRP $749
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
129081 26 7.5 Competition 5/8-24 7lbs-5oz $749
Diagram
Part Number 129081
Barrel Length in Inches 26
Twist Rate 7.5
Contour Competition
Muzzle Thread 5/8-24
Weight 7lbs-5oz
MSRP $749
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
145807 26 7.5 Competition 5/8-24 7lbs-5oz $749
Diagram
Part Number 145807
Barrel Length in Inches 26
Twist Rate 7.5
Contour Competition
Muzzle Thread 5/8-24
Weight 7lbs-5oz
MSRP $749
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
129067 26 8 Sendero 5/8-24 7lbs-5oz $749
Diagram
Part Number 129067
Barrel Length in Inches 26
Twist Rate 8
Contour Sendero
Muzzle Thread 5/8-24
Weight 7lbs-5oz
MSRP $749
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
129180 26 7.5 Competition 5/8-24 7lbs-5oz $749
Diagram
Part Number 129180
Barrel Length in Inches 26
Twist Rate 7.5
Contour Competition
Muzzle Thread 5/8-24
Weight 7lbs-5oz
MSRP $749
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
145814 26 8 Competition 5/8-24 7lbs-5oz $749
Diagram
Part Number 145814
Barrel Length in Inches 26
Twist Rate 8
Contour Competition
Muzzle Thread 5/8-24
Weight 7lbs-5oz
MSRP $749
Diagram
Part Number Barrel Length in Inches Twist Rate Contour Muzzle Thread Weight MSRP
130643 26 10 Competition 5/8-24 7lbs-5oz $749
Diagram
Part Number 130643
Barrel Length in Inches 26
Twist Rate 10
Contour Competition
Muzzle Thread 5/8-24
Weight 7lbs-5oz
MSRP $749
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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