Tricer GC Gun Clamp Black. Machined with Arca Swiss and 1/4-20 3/8-16 threads this rest will work on any tripod platform. You will not find a more solid solution for locking your rifle onto a tripod. Specifications for Tricer GC Gun Clamp: Manufacturer: Tricer Color: Black Attachment Type: Arca Swiss Weight: 9.9 oz Package Contents: Tricer GC Gun Clamp Tricer GC-RGCLAMP-1: GC Gun Clamp Black