Volquartsen Firearms Universal Red Dot Mount Black. It's compatible with Replacement Receiver as well as all Ultralite Rifles and secures with 4 screws. Specifications for Volquartsen Firearms Universal Red Dot Mount: Manufacturer: Volquartsen Firearms Color: Black Gun Make: Universal Gun Model: Universal Gun Type: Universal Red Dot Sights-Footprint: Docter Optic Cut: Not Applicable Country of Origin: USA Package Contents: Volquartsen Firearms Universal Red Dot Mount Volquartsen Firearms VFAR: Universal Red Dot Mount Black