Red 3 MOA Dot For the RMR/407C/507C Footprints Shake Awake/Motion Deactivated Standby Up to 50,000 Hours of battery life IPX7 waterproof Drop-Proof(6', 45oz, Concrete) Side Mounted Battery Window Size - 34.5x26mm or 1.36"x1.02" Parallax Free 8 Daytime Settings/2 Night vision Settings       The BULL PRO red dot is DROP TESTED and deemed DROP PROOF for use on pistols. While the optic has survived direct optic down drops onto solid rock on full-sized rifles (AK-47). It is conservatively rated DROP PROOF for 6' drops, optic down, on 45oz pistols, onto concrete that you might find on the street. The BULL PRO red dot utilizes an oversized glass with a width of 33mm, delivering a significantly larger field of view. When you're aiming at a target, the red dot enables you to swiftly and accurately lock onto your objective, facilitating quicker shooting & extensive application in various shooting competitions. For more information on our Cyelee Drop-Proof Standard please see our warranty information page on our website. Window - 34.5x26mm or 1.36"x1.02"