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Overstock Barrel Blanks


These overstock barrel blanks are all un-used, never been worked on other than fluting on the specified Stainless barrels on the list. The “Fluted to” length refers to the ideal eventual finished length of the barrel, not the length where the fluting ends. Un-fluted steel blanks may be cut and finished by your gunsmith to the final length of your choice.

Only the BSF carbon barrels have muzzle threads, all other barrels are un-finished at the muzzle.

All barrels are un-finished at the chamber end, ready for chambering and receiver connection specs of your choice.

Overstock barrels are final sale items.

Flatline Ops Halo-X Bubble Level


The new Halo-X scope bubble level is machined from ultra-strong 7075-T6 aircraft aluminum and is Flatline Ops’ lightest and strongest level. Weighs less than half an ounce and is only 5/16″ wide. This is our best recommendation for bubble levels at AllTerra.

Color is anodized Black.



A muzzle brake or recoil compensator is a device connected to, or a feature integral to the construction of, the muzzle or barrel of a firearm that is intended to redirect a portion of propellant gases to counter recoil and unwanted muzzle rise. 5/8-24 compatible.

AllTerra V4-T Muzzle Brakes


The NEW V4-T model includes a tunable section on the muzzle end allowing users to fine-tune their barrel harmonic to achieve even greater accuracy with various factory ammo types, and also make dialing in custom load accuracy easier and less time consuming than testing various bullet seating depths. 5/8-24 compatible.