Holosun HS510C Lower 1/3 Co-Witness Spacer Net-Weight-(g)_862 Thanks to the optical sensors

Thanks to the optical sensors GATE have eliminated the problem of faulty switches that can occur in competitors' drop-in mosfets

VIS POINT–>Visible red pointer only

Include S Forward Assist (Silver) & Bolt Cover (Gold Coating)

User doesn't have to buy batteries anymore

Holosun HS510C Lower 1/3 Co-Witness Spacer Net-Weight-(g)_862 Thanks to the optical sensorsHolosun HS510C Lower 1 3 Co Witness Spacer Metal Construction Designed to extra Spacing for you to Co witness your Iron Sights with your Red Dot Sight Co witnessing means you can align your dot with your iron sights. Compatible for Holosun Optics with Compatible Shoe