The Knights Armament Anti-Cant Device Rail Mounted Black is a compact bubble level designed to help precision shooters keep their rifle perfectly upright on the shot. Machined from lightweight aluminum and finished in matte black, it clamps directly to any MIL-STD-1913 Picatinny rail and sits low enough to tuck neatly under most optics without adding bulk or snag points.

This rail-mounted level provides a clear visual reference so you can quickly confirm rifle orientation before breaking the shot, reducing cant-induced error at extended distances. Its ambidextrous placement and low-profile footprint make it well suited for dedicated range rifles, long-range hunting setups, and training carbines where consistency matters. The thoughtful design reflects Knights Armament’s reputation for precise engineering and purpose-built accessories.

Key Features:

• Manufacturer: Knights Armament
• Model: Anti-Cant Device Rail Mounted Black
• Attachment Type: Picatinny rail clamp
• Material: Aluminum
• Color: Matte black
• Item Weight: 1.5 oz
• Low-profile bubble level sits approximately 0.4" above rail