A Taller Front Sight. A Clearer Co-Witness Solution.When you add an optic to your Kimber 2K11, factory-height iron sights may sit too low to provide the backup sight picture you&';re looking for.TAG Precision&';s new .350" Optics Ready Front Sight is purpose-built for compatible Kimber 2K11 models equipped with optics. Its taller blade is designed to bring the front sight back into view through the optic window, providing a properly matched co-witness sight picture without unnecessarily obstructing your view.And it&';s just the beginning. This is the first front sight in TAG Precision&';s expanding Kimber 2K11 co-witness series, with matched components already in development.Includes: additional green front fiber, one FiberLok(TM) screw, and one Allen key. Important Fitment Information Fits the Kimber 2K11, 2K11 PRO, 2K11 Target, and 1911 DS Warrior. This .350" front sight is designed for compatible non-compensated models. It is not intended for Kimber 2K11 COMP or PRO COMP models. Separate front sight options for compensated models are in development. Optic Compatibility Designed for co-witness applications involving compatible configurations with: Trijicon RMR Trijicon RCR Trijicon SRO Holosun 507C Other optics using the RMR/SRO footprint, subject to mounting configuration Important: Co-witness depends on the complete combination of firearm, optic, mounting plate, and rear sight. Confirm the appropriate configuration before purchase. Replacement Fiber Compatibility This sight requires the FiberLok(TM) TSH Customization Kit - 13.3 mm for replacement fibers and color customization. The 10.3 mm TSH kit is not compatible with TAG Precision Kimber 2K11 front sights.