This Bear Creek Arsenal barrel, named "Thunder," is a 16-inch 6.5 Grendel AR-15 barrel built in an M4 profile with a carbine-length gas system, machined from 4150 chrome moly vanadium steel and finished in Manganese Phosphate. It features a 1:8 twist rate, a .750-inch gas block journal, and 5/8x24 muzzle threads, with a Nitride-finished barrel extension, built for compatibility with both free-float and drop-in handguards.
The barrel is machined from 4150 chrome moly vanadium steel in an M4 profile at 16 inches, chambered for 6.5 Grendel with a 1:8 twist rate suited to a wide range of bullet weights in this cartridge. It's finished in Manganese Phosphate with a Nitride-finished barrel extension for added wear and corrosion resistance, and it's set up for a carbine-length gas system with a .750-inch gas block journal, along with 5/8x24 muzzle threads. The barrel is built for compatibility with both free-float and drop-in handguard systems.
Follow all manufacturer instructions and safe handling practices.
Ensure compliance with all applicable federal, state, and local laws.
Model: AR-15 16" 6.5 Grendel, Carbine Gas, M4 Profile, 1:8T Phosphate Barrel
Platform: AR-15
Classification: Rifle
Caliber: 6.5 Grendel
Length: 16
Handguard Compatibility: Freefloat, Drop-In
Gas Block Shelf: 0.75
Gas Length: Carbine
Profile: M4
Twist Rate: 1:8T
Finish: Manganese Phosphate
Material: 4150 Chrome Moly Vanadium
Thread Pitch: 5/8x24
Barrel Extension Finish: Nitride
Name: "Thunder"
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