SKU: USOBBL-100
UPC: 811069020140
The US Optics Fixed Bubble Level Rail Mount is a purpose-built anti-cant device engineered for riflemen and tactical operators who demand repeatable, level sight pictures downrange. Precision shot placement depends on barrel alignment, and even slight canting introduces elevation error at distance. This fixed bubble level mounts directly to any MIL-STD-1913 Picatinny rail, providing instant visual reference to verify your shooting platform is square to the bore.
Manufactured from 6061-T6 aluminum and finished with Type III hard anodize, this device resists corrosion and impact damage in field conditions. The fixed design eliminates leveling adjustments—setup is instantaneous. A protective screw-on vial cover ships with the unit to safeguard the bubble level during transport and storage. During firing, the cover threads onto the opposite end cap saver for secure storage without loss. The compact profile and minimal weight (0.13 lbs) add negligible bulk to your rail system while delivering critical cant correction functionality.
This mount serves precision rifle shooters, law enforcement marksmen, and hunters who shoot beyond 300 yards where canting becomes measurable. Range training and field deployment both benefit from the certainty that your rifle's level reference is independent of your position. Competitors and long-range hunters rely on devices like this to isolate human error from ballistic variables.
The US Optics name carries credibility in the optics and precision accessories market. This bubble level represents essential kit for shooters who have invested in quality glass and want to eliminate self-induced aiming errors.
WARNING ⚠️
You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
Purchasing a Firearm? Click HERE to see our firearm purchasing guide.