We modified our housing to eliminate the huge bottom hole in the stock housing

Stik: 4 mm bullet-stik

Spartan/DCB M41 (contains all stainless steel hardware used on Spartan and DCB M41)

FUTABA 1M11A11801 Upper Case R6106HF&C

Gyro and ESC) and Windows computer

Excel 55712 - Sanding Stick Red with 120 Grit belt oliespray We modified our housing toEXCEL EX55712 SANDING STICK WITH 120 GRIT BELT Sanding sticks come in colors to easily identify grit. All belt grits are compatible with all colored sticks. One sanding stick with 1 #120 belt Made in the USA 6 1 4"x 1 4" Spring tensioned back to keep belt in place, and make for easy change