Mathews RK HL Module $75.00 Add Review Ask Question Product Description Reviews (0) Questions (1) Mathews RK HL Module PLEASE SPECIFY WHAT LETTER MODULE A-M AND LET OFF. Currently there are no reviews for this product. are these for an avail? a friend is trying to get new modules for his. part number i have is 8RK. D. 80.B No - Contact the dealer who you purchased the bow from to get the module. Similar Products Mathews HTR D 85% module $50.00 View... Mathews Halon Comp X Modules $75.00 View... Mathews TRG Module $75.00 View... Mathews HTR M 75% module $50.00 View...