Recon grip and Stampede thumb-hole fitted. New Rapidstrike stock to be made once housing for pusher-box is cut in rear of shell.Full build-log here on BritNerf: britnerf.myfreeforum.org/about… The Brief: Build a Better Bullpup. (aka: Fixing everything that's wrong with the Rayven...)* Full Auto rather than semi-auto (Rapidstrike pusher-box).* Fire-control: 16amp micro-switches with short and responsive pull rather than janky manual trigger.* Wiring: 16AWG. Bullpup layout allows very short uncomplicated run: battery>switchgear>motors>return via thumb-hole bottom bracket* Artifact Red flywheel cage: drops in solidly onto three of the four attachment points. Minor bodywork needed to achieve screw-down on fourth.* Flywheels: Worker serrated concave Rapidstrike* Motors: TBA* Stock: Cut-down Rapidstrike. Taller and longer reach than Rayven. May lengthen reach again slightly for better 1-handed firing.* Magazine housing and alignment: rock-solid* Mag-release: to be extended using RS stock locking-switch.* Flywheel motors on opposite side of shell to operator's ear.* Vibration damping: glued between shell layers.* Battery: grip-mounted power-tool-style battery. Cutting up a Mako (Dewalt 12vMax knockoff) drill for the battery tray/connector. Fits 2 to three 18650 batteries or a decent Lipo in tray.* Balance: as much weight low and to the front as possible. Battery and tac-gear placement crucial here.* Stowability: As best as possible, maintain ability to transfer in and out of backpack without getting hung up on stock, grip or mag-well.* Handgrip: Recon. Angle and scale was wrong with Firestrike. Rayven would fit nicely.* Thumb-hole: Stampede. Demo's mag well is very wide at base so hand-grip connecting-bar guides wrist away from there.* Barrel-length: without Stampede flash-supressor, shorter than the Rayven by about 40mm.* Over-all length: without Stampede flash-supressor, again shorter than the Rayven.