The Black Jager 30 mm Scope Bubble Level is a precision optical accessory designed to eliminate cant (tilt) error when mounting or using a rifle scope. It attaches directly to a 30 mm scope tube and provides a clear, alcohol-filled vial to visually indicate when the scope (and rifle) is perfectly vertical. Use of this level helps maintain shot consistency, especially at longer ranges, by preventing drift due to cant.
Key Features
-
Designed for 30 mm scope tubes — fits directly onto a standard 34 mm outside-diameter scope body.
-
Alcohol / spirit-filled vial — the bubble is free to move and stable under temperature variation.
-
Machined aluminum body — durable and lightweight, typically anodized in matte black for corrosion resistance and low reflectivity.
-
Low-profile design — built to minimize interference with turret knobs, rings, or accessories.
-
Single-bolt or hinged mounting — easy to install or remove without full disassembly of your scope setup.
-
Clear, high-visibility bubble — ensures you can see the bubble in many lighting conditions.
-
Precision alignment — aids the shooter in ensuring vertical alignment before each shot, reducing cant-related horizontal errors.
-
Lifetime warranty / guaranteed quality (if offered by manufacturer)
Example Specifications (typical for similar 30 mm models; adjust to your unit)
| Spec | Typical Value |
|---|---|
| Tube size | 34 mm |
| Material | Aircraft-grade aluminum (6061 or similar) |
| Finish | Hard-anodized matte black |
| Weight | ~ 10-20 g (0.3-0.7 oz) |
| Length / footprint | ~ 50–60 mm (length) × ~ 8–10 mm width, depending on model |
| Profile height | Low to moderate — designed to avoid interfering with knobs |
| Mounting method | Single clamp bolt, hinged ring, or open-top clamp |
| Liquid Type | Alcohol / spirit-based |
| Bubble sensitivity | Fine — responds to small tilt angles |
| Operating temperature range | (Not always stated) — typical for aluminum & spirit vials: –20 °C to +60 °C (approx.) |
| Warranty | Manufacturer-dependent (some offer lifetime) |

Veldt SHOTBLAST TRIGGER AND MECHANISM CLEANER 400ml
MDT Castle Nut
Veldt AirFIRE Bore Cleaner 100ml
Bore Tech AR-10 Receiver Wiper Set - 2 Piece
HOYT ULTRAREST® INTEGRATE® MX ARROW REST
BORE TECH BORE GUIDE 17-25 CAL GOLD
Holosun 407C/507C PIC - Picatinny Mount for 407C/507C/508
Veldt SHOTGUN Barrel Sweep Bore Cleaner 200ml
SEEKER CYMAX RECHARGEABLE SPOTLIGHT – 10,000 LUMENS
Holosun P.ID Plus, Dual Green Laser/Flashlight Rechargeable
BORE TECH BORE GUIDE 25-30 CAL RED
BORE TECH AR-15/M-16 NYLON CHAMBER BRUSH 223/5.56
Veldt P51 CLP 120ml
Veldt GT150 Traditional Gun Oil 100ml
Holosun KPLT MOS - To fit K Sight on MOS Footprint.
Burris Eliminator 6 4-20x52mm LRF 


 
 
Reviews
There are no reviews yet.