Tandemkross Cthulhu replica not included!! Because Lancer Tactical is too lazy to sell replacement/additional Picatinny rails for their Cthulhu replica I decided to design my own. Sale includes 3 rails in 2 sizes in 3 designs. Short 1:1 replica of the OG rail. Fits top or bottom. Long (2 versions) - full length Picatinny slots and another version with slots only where the original would be if mounted on top. Fits ONLY on top. These are 3D printed to the highest degree of quality PETG HF for the best durability and resistance to warping. Includes hardware to mount top and bottom! Message me if you want them in Nylon Carbon Fiber (+$5) These are made to order so please allow up to 3 business days to ship.