Kart Barrel – National Match 10MM 5″ Bull Barrel – Wilson/Nowlin Ramped

Upgrade your 1911 to true match-grade performance with the Kart Barrel – National Match 10MM 5″ Bull Barrel – Wilson/Nowlin Ramped. Engineered for shooters who demand elite accuracy, exceptional reliability, and maximum case support, this barrel is a premier choice for competitive builders, precision shooters, and high-performance 1911 enthusiasts. Kart barrels are world-renowned for their machining excellence, and this ramped bull barrel continues that legacy with unmatched precision and durability.

Competition-Grade Accuracy from Premium Steel

Kart starts each National Match barrel with ordnance-grade forged steel, ensuring long-term structural integrity and superior heat resistance. Using Kart’s proprietary cutting and rifling process, each bore is produced to exacting standards, delivering:

• A mirror-smooth interior finish

• Enhanced bullet stability

• Reduced fouling and friction

• Consistent velocity and accuracy

Every barrel is air-gauged to an extraordinary .0002″ tolerance, guaranteeing exceptional uniformity for repeatable match-level performance.

Wilson/Nowlin Ramped Design for Superior Feeding & Case Support

The Wilson/Nowlin ramped configuration provides dramatically improved case-head support, making this barrel ideal for high-pressure calibers such as 9mm Major, .38 Super, and other competition loads. The integrated feed ramp delivers:

• Stronger chamber support

• Smoother feeding with flat-nose, JHP, and hollow-point ammo

• Increased reliability under rapid-fire conditions

• Reduced stress on the frame compared to non-ramped barrels

Kart further enhances the throat geometry for smooth, consistent feeding across a wide range of bullet profiles.

Oversized for Precision Gunsmith Fitting

This is a true match-grade, non-drop-in barrel. It is intentionally oversized to allow a skilled 1911 gunsmith to hand-fit the critical lockup surfaces:

• Hood and breech face length

• Upper locking lugs

• Lower lug engagement

• Clark/Para ramp interface

• Bull barrel fitment to slide

When properly fitted, this barrel provides the tightest, most consistent lockup, maximizing both mechanical accuracy and long-term durability.

🔧 Key Features & Benefits

Match-Grade Build Quality

• Forged ordnance steel for excellent strength

• Precision rifling for smooth bore consistency

• Designed for competition-level accuracy and longevity

Extreme Precision Tolerances

• Air-gauged to .0002″ uniformity

• Oversized for exact custom fitting

• Ensures perfect slide-to-barrel lockup

Wilson/Nowlin Ramped Performance

• Enhanced case support for high-pressure rounds

• Improved feeding reliability

• Stronger chamber area than standard non-ramped barrels

Optimized for Competitive Shooting

Perfect for shooters participating in:

• USPSA

• IPSC

• Steel Challenge

• 3-Gun

• Defensive 1911 builds

Professional Installation Required

Due to its match-grade oversizing, this Kart barrel requires professional gunsmith fitting to ensure:

• Correct timing

• Proper lockup

• Full reliability

• Maximum accuracy potential

Why Competitive Shooters Choose Kart National Match Barrels

Kart remains a top-tier barrel manufacturer thanks to unmatched levels of:

• Machining excellence

• Tight, repeatable tolerances

• Proven accuracy improvements

• Ultra-smooth feeding

• Long service life