Bear Creek 18" .450 Bushmaster Barrel 1:24 4150 CMV Phosphate HBAR Mid-Gas

18" .450 Bushmaster Barrel 1-24T 4150 CMV Phosphate HBAR

The is an 18 inch .450 Bushmaster barrel built from 4150 Chrome Moly Vanadium steel with phosphate finish and a 1-24T twist rate. The H-Bar profile delivers accuracy and durability while the mid-length gas system provides reliable cycling with standard .450 Bushmaster ammunition.

Key Features

• 4150 Chrome Moly Vanadium construction with phosphate finish for corrosion resistance
• H-Bar profile for improved accuracy and heat management
• 1-24T twist rate optimized for .450 Bushmaster projectiles
• Mid-length gas system for balanced performance
• Nitride finished barrel extension
• 5/8x32 thread pitch for standard muzzle devices
• Freefloat compatible handguard design

Perfect For

• AR-15 platform builders seeking .450 Bushmaster capability
• Shooters wanting a durable mid-range barrel option
• Hunters and sport shooters using larger caliber AR builds
• Builders prioritizing heat management and accuracy

Proven Construction Quality

The 4150 Chrome. Moly. Vanadium material resists corrosion and handles sustained shooting without degradation. The phosphate finish protects the steel while the nitride barrel extension adds durability at the critical gas port interface. This combination ensures the barrel maintains accuracy through extended use.

Twist Rate and Ammunition Compatibility

The 1-24T twist rate is engineered specifically for .450 Bushmaster projectiles. Your ammunition selection and barrel length work together to determine velocity and performance characteristics. Verify your ammunition specifications match this barrel configuration before use.

H-Bar Profile and Heat Management

The H-Bar profile is heavier than standard profiles and dissipates heat more effectively during rapid fire. This design reduces point of impact shift and extends barrel life. The profile also maintains structural integrity across the 18 inch length.

Mid-Length Gas System Integration

The mid-length gas tube placement balances reliability and recoil impulse for the .450 Bushmaster platform. The 0.75 inch gas block shelf accommodates standard mid-length gas blocks. Ensure your gas block and tube selection match mid-length specifications.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable laws. Verify ammunition specifications match barrel caliber and twist rate. Use only with properly sized gas system components.