The Light Tank Dual Weapon Turret MKI is a three (3) piece kit that includes the turret and weapon mount. The turret can use any Blood & Skulls Industry Light or Medium Weapon Sets and the weapon mount is pre-drilled for 1/8 inch diameter by 1/16 inch magnets. It is compatiable our Capricorn Hull and Barmkin Hard Top kits in addition to the Games Workshop Predator and Baneblade plastic model.