I'm currently building a Bullpup style Marlin Camp 9 using the Muzzlite stock. I trashed the plastic trigger actuator for a custom billet one. I also cut off the crappy carry handle rear sight and A-post style front and installed a full length M1913 style rail I made from a EGW extrusion that bolts tightly to the reciever and barrel at the muzzle. I need a set of BUIS that would be the type you would put on a flat-top AR. I'd like to keep the cost under $100, yet still get something made in the USA and fully adjustable. Any suggestions from your actual use of such? Thanks!