Holosun Solar Charging Open Pistol Sight SCS-VP9-GR Spectacle can be used as a

can be used as a hydration reservoir or paired with a Plug-N-Play Cap and 28mm filter adapter

which can also be used to measure lengths of cordage

Stainless Steel Glass Break

When installed on the base of the magazine

Holosun Solar Charging Open Pistol Sight SCS-VP9-GR Spectacle can be used as aThe SCS VP9 GR is a solar powered pistol optic designed for HK VP9 optics ready slides, mounting directly without adapter plates while maintaining an ultra low profile compatible with factory iron sights. Holosuns Solar Charging Sight (SCS) technology, automatic brightness control, and internal rechargeable battery with a 20,000 hour reserve provide a simple, low maintenance optic that can operate indefinitely with normal light exposure. Features