Singapore Nerf Fan Chia Wee Beng took it upon himself to make the cleanest Rapidstrike/Masterkey combination I’ve seen yet. It also features the new Elite Spectre barrel and a nice looking Red Dot Sight of sorts on the top rail.
To accommodate the Rough Cut, it looks like he’s removed the battery tray up front entirely. Doing this has allowed him to lessen the blaster size, versus attaching it to a front barrel.
You can check out two more, slightly earlier photos of this blaster below.