NIB just like the Surefire 400 Rico Tactical light system fits all 1911 rail systems

Superb Quality, Affordable Price.
Features:
Weight: 1.28 lbs.
Overall Length: 7.44"
Overall Height: 5.7"
Peak Brightness: 250 Lumens
Continuous Operation: 40 Min.
Battery Type: Three 3 Volt Lithium
Bulb Life: 18 to 20 hours
Heavy Duty Construction Poly Carbonate Body, and Aluminum Strike Bezel
Thumbscrew Mounts to Picatinny Rail
Integral pressure pad on either side of the vertical grip to activate the Xenon Light
Pressure pad on the top rear of the vertical grip