Overview Reviews Product Description Details: Hyper3 "HPR" Regulator for the Proto Matrix Rize Series Especially designed for use with the Rize, will not fit standard VASA threads Black Anodizing W/ Black Rubber Grip Good Condition Product Videos Custom Field Product Reviews (No reviews yet) Write a Review Write a Review × Proto - Rize Hyper3 Regulator Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name *Email *Review Subject *Comments