ENHANCED DURABILITY - Ensures your SureFire XC1-A & XC1-B weaponlights remain securely mounted, even under the most demanding conditions, providing long-lasting reliability. SUPERIOR COMPATIBILITY - Designed specifically for SureFire XC1-A & XC1-B handgun weaponlights, guaranteeing a seamless fit and optimal performance every time. RELIABLE MOUNTING - Includes a universal rail clamp, screw housing, split-lock washer, rail clamp screw, and retaining ring for secure and stable weaponlight attachment. EASY INSTALLATION - The spare parts and mounting kit allows for quick and straightforward replacement of worn or damaged components, minimizing downtime.