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The 6.5 Grendel earned its reputation by squeezing serious long-range punch out of the standard AR-15 platform, and this 20-inch Ballistic Advantage barrel is built to make the most of it. Machined from 416R stainless steel with a clean bead blasted finish, it runs a DMR profile that adds rigidity where it counts without turning your rifle into a boat anchor. The 1:8 twist rate pairs nicely with the heavier .264 caliber projectiles the Grendel loves, so you get consistent stabilization whether you're punching paper at distance or reaching out on game.
This one uses the Grendel Type 2 chamber, which is the spec the cartridge was originally designed around and the standard most quality 6.5 Grendel barrels follow today. The full 20 inches of barrel length lets the powder burn more completely, so you pick up meaningful velocity over a 16-inch setup while still keeping an overall build that handles well. The rifle-length gas system smooths out the impulse and helps the action run cleaner, which is exactly what you want out of a precision-minded rig.
Every Premium Series barrel gets HP and MPI tested and carries a FailZero nickel boron coated extended M4 feed ramp extension for reliable feeding. The muzzle comes threaded 5/8×24, so you can add a brake, comp, or suppressor without any extra machining. The .750 gas block journal accepts standard low-profile gas blocks, and the barrel drops into standard AR-15 uppers, making it a straightforward swap for anyone stepping up from 5.56 into something with more downrange authority.
Ballistic Advantage backs these barrels with a sub-MOA accuracy guarantee when paired with match grade ammunition. If you're after a low-recoil cartridge that still carries energy way out there, this barrel is a proven foundation for a flat-shooting, hard-hitting AR build.
This barrel runs a 1:8 twist, which is the sweet spot for the 6.5 Grendel. It stabilizes the heavier .264 caliber bullets the cartridge is known for, generally in the 90 to 129 grain range. That means better accuracy and more consistent performance at longer distances.
Yes. It's built to drop into a standard AR-15 upper receiver just like a 5.56 barrel would. You'll want a 6.5 Grendel bolt and Grendel magazines to run the cartridge, but the barrel itself uses the same .750 gas block journal and standard barrel extension you're already familiar with.
It is. The muzzle comes threaded 5/8×24, which is the common thread pitch for 6.5 caliber muzzle devices and suppressors. You can mount a brake, flash hider, or can right out of the box with no extra machining needed.
Ballistic Advantage guarantees sub-MOA accuracy from their Premium Series barrels when you feed them match grade ammunition. The 416R stainless build, DMR profile, and Type 2 chamber all work together for precision, and each barrel is HP and MPI tested before it ships. Your real-world results will depend on your ammo, optic, and the rest of your build.
| UPC | 819747025425 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | BABL65G004P |
| Length | 20'' |
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