Easy To Install - Attaches To Any 7/8" Weaver-Picatinny Rail And Locks Into Slots With 2 Allen Screws * Superior Heavy Duty Construction Of Premium Aircraft Grade 6061 Aluminum * Hard Coat Anodized Finish * Provides 1 Weaver Picatinny 45 Degree Offset Accessory Rail - Great For Angling Tactical Lights And Lasers * Length: Approx 2.2 " (4 Separate Slots )