Mutation X V4 RDA 18650

18 Degree drilled airflow holes – to create a vortex inside barrel! Airflow routed underneath the coils for extra variety. 22 mm diameter. Center post positive block. Dual negative posts built into base. Heat sink top cap – redesigned and re-chambered with a new drip tip. Uniquely serialized. Philips head center post screws. Not a clone. Very deep juice well. Three piece design. Matching wide-bore drip tip. Silver coated contact pin.