Replacement front sights have a high-visibility white outline surrounding a Tritium insert for easy sight acquisition in all types of ambient light-from bright sunlight to nighttime, and anything in between. Low, streamlined, no-snag shape makes these sights excellent for concealed carry guns. Model available for RugerA(R) LCRA(R). Mfg: Xs Sight Systems SPECS: Machined steel, matte black finish. LCRA(R) - .110" (2.8mm) dia. dot. Gunsmith installation recommended.