Holosun SCRS-GR-MRS Solar Charging Green Multi-Reticle Sight Magnifiers It doesn’t have a gauge

It doesn’t have a gauge so you won’t be able to see where your pressure is at when filling

This red dot unit also has a dial to change the brightness of the sight unit

Battery and charger NOT included

Length: 20-Inches

Holosun SCRS-GR-MRS Solar Charging Green Multi-Reticle Sight Magnifiers It doesn’t have a gaugeDescription Holosun SCRS GR MRS Solar Charging Green Multi Reticle Sight The SCRS GR (Solar Charging Rifle Sight) advances Holosuns SCS technology creating an all new, ultra compact 20mm tube sight designed for long gun applications. SCRS GR features light sensors and an advanced Auto Mode for automatic reticle intensity settings and Manual Mode for manual control of dot intensity. FEATURES Green Multi Reticle System Auto Adjusting & Manual Brightness