The Kastle Group KNEKT-LVL is a bubble level made for Fortress Series scope mounts, giving you a visual check that the rifle is not tilting to either side before you take a shot. It fastens to whichever of the mount's four KNEKT ports you prefer, so you pick the spot that suits your setup. You can flip the level upside down to change its height and position to match your own preference.

The body is made from 7075-T651 aluminum and finished in black with a Type III MIL SPEC hard anodized finish, a hardcoat the maker says gives more corrosion resistance and surface hardness than standard Type II anodizing. The KNEKT interface uses a locating boss and two shoulder bolts that the maker says give a reliable return-to-zero mount. Black is the color covered here, and the level is also offered in Flat Dark Earth, Desert Sand, Clear and OD Green, all 100% made in the U.S.A.

• Brand: Kastle Group
• Model: KNEKT-LVL
• Type: Bubble Level
• Fits: Fortress Series Optic Mount (KNEKT interface)
• Material: 7075-T651 Aluminum
• Finish: Type III MIL SPEC Hard Anodized
• Color: Black
• Part Number: KNEKT-LVL-BLK