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Flatline Ops
The Flatline Ops Halox 35mm scope level is a precision instrument built to mount on scope tubes with minimal real estate. Designed for shooters running optics with crowded turret housings or dense mounting surfaces—think heavily configured AR builds or scopes already hosting other accessories—this level gives you true bubble-level confirmation without the bulk. Machined from 7075-T6 aircraft aluminum and weighing less than half an ounce, the Halox brings serious strength-to-weight ratio to your setup.
What sets this scope level apart is its engineering lineage: it was originally developed for military service rifles, including Leupold's Mark 5HD platform optics used by U.S. military marksmen. That pedigree shows in the details. The suspended bubble level sits on a reflective platform designed to catch and amplify ambient light, making the bubble visible in bright sun, low light, and everything between. The Vial-Bridge dual connection system locks the level firmly to your scope tube, and the Jaw-Bone barrel hinge lets you install or remove it without fuss.
At just .3125" wide, the Halox fits where traditional scope levels can't. Type III hard anodizing protects the aluminum against corrosion and wear in the field. Whether you shoot left or right handed, the single top strap screw provides the access and leverage you need to dial it in once and leave it alone. If you're building a precision rifle or hunting rifle where every inch of tube space matters, this is the level that won't force compromises.
| Brand | Flatline Ops |
| Product | Halox 35mm Scope Level |
| Material | 7075-T6 aircraft aluminum |
| Finish | Type III hard anodize, black |
| Weight | Less than 0.5 oz |
| Width | 0.3125" |
| Mounting Tube Diameter | 35mm |
| Level Type | Suspended bubble with reflective platform |
| Hinge Style | Jaw-Bone barrel hinge |
| Hand Orientation | Ambidextrous (left and right) |
The Halox is designed specifically for tight mounting spaces. At just .3125" wide, it's built to work on scope tubes where crowded turret housings or other accessories limit your options. Measure your available tube space before purchase to confirm fit.
Yes. The Halox is designed for both left and right handed shooters, so orientation is not a barrier to use.
The suspended bubble level sits on a reflective platform engineered to refract and amplify ambient light. This design enhances visibility of the bubble in bright outdoor conditions, low light, and harsh field environments—making it easier to read true level regardless of lighting.
The Jaw-Bone barrel hinge and single top strap screw are designed for fast, tool-free installation. Clamp the level onto your 35mm scope tube, tighten the top screw, and adjust as needed. Removal is equally simple when you need to take it off.
Flatline Ops
The Flatline Ops Halox 35mm scope level is a precision instrument built to mount on scope tubes with minimal real estate. Designed for shooters running optics with crowded turret housings or dense mounting surfaces—think heavily configured AR builds or scopes already hosting other accessories—this level gives you true bubble-level confirmation without the bulk. Machined from 7075-T6 aircraft aluminum and weighing less than half an ounce, the Halox brings serious strength-to-weight ratio to your setup.
What sets this scope level apart is its engineering lineage: it was originally developed for military service rifles, including Leupold's Mark 5HD platform optics used by U.S. military marksmen. That pedigree shows in the details. The suspended bubble level sits on a reflective platform designed to catch and amplify ambient light, making the bubble visible in bright sun, low light, and everything between. The Vial-Bridge dual connection system locks the level firmly to your scope tube, and the Jaw-Bone barrel hinge lets you install or remove it without fuss.
At just .3125" wide, the Halox fits where traditional scope levels can't. Type III hard anodizing protects the aluminum against corrosion and wear in the field. Whether you shoot left or right handed, the single top strap screw provides the access and leverage you need to dial it in once and leave it alone. If you're building a precision rifle or hunting rifle where every inch of tube space matters, this is the level that won't force compromises.
| Brand | Flatline Ops |
| Product | Halox 35mm Scope Level |
| Material | 7075-T6 aircraft aluminum |
| Finish | Type III hard anodize, black |
| Weight | Less than 0.5 oz |
| Width | 0.3125" |
| Mounting Tube Diameter | 35mm |
| Level Type | Suspended bubble with reflective platform |
| Hinge Style | Jaw-Bone barrel hinge |
| Hand Orientation | Ambidextrous (left and right) |
The Halox is designed specifically for tight mounting spaces. At just .3125" wide, it's built to work on scope tubes where crowded turret housings or other accessories limit your options. Measure your available tube space before purchase to confirm fit.
Yes. The Halox is designed for both left and right handed shooters, so orientation is not a barrier to use.
The suspended bubble level sits on a reflective platform engineered to refract and amplify ambient light. This design enhances visibility of the bubble in bright outdoor conditions, low light, and harsh field environments—making it easier to read true level regardless of lighting.
The Jaw-Bone barrel hinge and single top strap screw are designed for fast, tool-free installation. Clamp the level onto your 35mm scope tube, tighten the top screw, and adjust as needed. Removal is equally simple when you need to take it off.
