The rifle from Tengen Toppa Gurren Lagann. The bolt works, and it comes apart for easier transport.
Overall length is 72"
All I need now is a bold, brash, boisterous, buxom, bouncy, beauty, boasting a barely behaving bikini bra braced with a brazenly bawdy borderline bottom bit.
All main parts are plastic electrical conduit.
The bolt is 1-1/4" dowel with a steel bolt with the head cut off
The suppressor is cardboard over a foam core.
The clip and holder are 1/8" plywood.
The bipod is all plywood for the mounts and 1/2" dowels with plastic balls cut in half for the legs.