Airsoft Mutation EPN Air Nozzle for AEG – 21.2mm Umarex USA Benchmade 495 Vector Axis Assisted Benchmade 495 Vector Axis Assisted this rifle is ready to be fielded like any other VFC made M4 AR 15 styled gas airsoft rifles that came before it and it will perform superbly and you also would not have to worry about aftermarket parts or accessories as there is plenty to go for and it will not cost you an arm or a leg like the rifles DNA offers The nozzles are made like this on purpose and this tiny mod was known to be possibly needed already you may need to chamfer by cutting sanding a 45 degree slope on the inner tip of your hopup