Kart Barrel – XACT Fit Kit – .40 S&W
5″ Government Non-Ramped Match-Grade 1911 Barrel
Match-Grade Accuracy Without the Burden of Full Custom Fitting
The Kart Barrel XACT Fit Kit .40 S&W Barrel is specifically engineered for shooters, gunsmiths, and competitive 1911 builders who demand match-grade accuracy yet, at the same time, want to avoid the complexity of a full gunsmith-fit barrel. For that reason, Kart designed the XACT Fit system to deliver exceptional lockup, outstanding accuracy, and reliable feeding while, at the same time, dramatically reducing installation time.
Moreover, because Kart remains one of the most respected names in precision 1911 components, this barrel reflects decades of proven engineering. This model features a 5″ Government-length, non-ramped .40 S&W configuration, which, consequently, makes it ideal for competition pistols, duty firearms, and high-performance custom builds.
Match-Grade Performance with Minimal Adjustment
Unlike standard drop-in barrels, the Kart XACT Fit Kit functions as a semi-drop-in match barrel. As a result, it bridges the gap between convenience and precision. Instead of sacrificing accuracy for ease of installation, you gain the accuracy benefits of a traditionally fitted Kart barrel while still requiring only minimal adjustment.
Furthermore, Kart machines each barrel from premium ordnance-grade steel and applies a proprietary rifling process. Because of this, shooters benefit from:
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A mirror-smooth bore for consistent bullet travel
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Uniform bullet stabilization for improved accuracy
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Reduced friction for increased velocity and barrel life
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Enhanced precision at extended distances
In addition, Kart air-gauges every bore to an extremely tight .0002″ tolerance. Consequently, each shot experiences consistent pressures, which, in turn, results in reliable and repeatable accuracy.
Non-Ramped (GI-Style) Design for Proven Feeding Reliability
This version features a non-ramped, GI-style barrel design, which makes it perfectly suited for standard 1911 frames. However, Kart does not stop there. Instead, Kart refines the throat and feed-ramp geometry to go well beyond traditional specifications.
As a result, this design offers:
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Compatibility with standard GI-style frames
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Smooth feeding across a wide range of bullet profiles
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Improved reliability with hollow points and wadcutters
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Greater durability than conventional non-ramped barrels
Therefore, whether you are building a competition gun or upgrading a duty pistol, this barrel ensures smooth, consistent cycling under demanding conditions.
Faster Installation with Professional-Level Results
The Kart XACT Fit Kit includes precision pre-machined components that significantly simplify installation. While some fitting is still required—most commonly hood length and lower lug adjustments—the process is far more efficient than fitting a traditional National Match barrel.
As a result, this kit is ideal for:
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Custom 1911 builds
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Accuracy upgrades for factory pistols
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USPSA, IPSC, and IDPA competition firearms
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Gunsmiths seeking time-efficient, repeatable results
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Enthusiasts who want professional-level accuracy
Therefore, you achieve gunsmith-level performance without the extended labor normally associated with match barrel fitting.
Key Features & Performance Advantages
🔧 Match-Grade Construction
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Premium ordnance-grade steel
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Precision-cut proprietary rifling
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Air-gauged to ultra-tight tolerances
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Built for long-term accuracy and durability
⚙️ XACT Fit Installation System
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Semi-drop-in design
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Minimal fitting required
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Delivers match-grade results more efficiently
🎯 Competition-Ready Accuracy
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Rock-solid lockup for repeatable precision
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Consistent barrel timing shot after shot
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Ideal for high-performance .40 S&W builds
🔁 Reliable Feeding Performance
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Optimized GI-style feed geometry
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Smooth, controlled cycling
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Supports a wide range of bullet shapes and loads
💎 Long Service Life
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Designed to handle high-pressure .40 S&W loads
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Maintains accuracy through thousands of rounds
What’s Included in the Kart XACT Fit Kit
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Kart precision-machined match-grade .40 S&W barrel
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XACT Fit hardware and fitting components
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Detailed installation guide for proper timing and lockup
Why Shooters Continue to Choose Kart XACT Fit Barrels
Kart barrels are widely regarded as some of the finest 1911 barrels available. Therefore, the XACT Fit Kit allows shooters to access Kart-level accuracy, reliability, and performance without the cost or complexity of full custom fitting.
As a result, you gain:
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Exceptional machining quality
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Noticeable and repeatable accuracy improvements
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Tight, consistent barrel lockup
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Smooth, reliable feeding across ammunition types
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Outstanding long-term durability
Ultimately, the Kart XACT Fit Kit .40 S&W Government Barrel delivers professional-grade performance while, at the same time, simplifying the path to true match-grade accuracy.






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