The Holosun Enclosed Pistol Sight Carry (EPS Carry) is designed for use on Slim-Line carry pistols. The Holosun EPS Carry features an extremely low deck height, allowing for the use of standard iron sights for backup on some pistol models. The mounting footprint is the same as the HS407K X2 and HS507K X2 models, with low indexing lugs, thus facilitating the IPX8 waterproof rating and low height over bore. Other key features include up to 50,000 hours of battery life, and the Shake Awake Sensor. The EPS Carry will include an adapter plate for pistols with higher indexing lugs like the Hellcat, Glock 43/48 MOS, etc. as well as one CR1620 lithium battery.Features Up to 50,000 hours of battery life Shake Awake IPX8 Waterproof (1) CR1620 Battery Adapter Plate Multi Tool Lens Cloth User Manual