Longshot --> Barrett .50 Cal
I took my old Nerf Longshot and completely overhauled its exterior to resemble a Barrett .50 caliber anti-materiel rifle. To create the flat top, I cut off the carrying handle, glued several pieces of plexiglass together, covered the seams in Bondo, sanded the Bondo to create a smooth shape, and then screwed it onto the top of the blaster. The picatinny rail is permanently glued/screwed to the top plexiglass piece. The new stock was purchased from AK blastermod. The scope, bolt mechanism, new barrel attachment, magazine and laser sight are 3D printed kit pieces from WorkerMod. Finally, I spraypainted the whole thing dark grey (with white primer underneath). I also replaced the stock internals with an aluminum upgrade kit for stefan darts, also purchased from AK-blastermod.
PSA: DO NOT GO OUT IN PUBLIC WITH A NERF BLASTER THAT HAS BEEN MODIFIED TO HAVE A DARK/REALISTIC/UNSAFE AESTHETIC. This Barrett Longshot was merely an art project for me, and the most I ever use it for is shooting paper targets in the safety of my own home. I NEVER take it out in public, as doing so would be very dangerous and potentially lethal (not to mention illegal, depending on laws pertaining to toy firearms in your region).