Amazon.com: Nerf N-Strike Maverick - Colors May Vary(Discontinued by manufacturer) : Toys & Games
Nerf Spring Upgrade - Etsy
Nerf N-Strike Maverick Catch Spring Replacement - iFixit Repair Guide
Rebarrelled a Maverick to fire Ultra because i wanted to make something different. Running stock mav internals at a healthy 50 fps, but looking forward to cosmetics and a spring upgrade :) :