I have this brand new trigger from Rise Armamanet, Rev 535. Never installed. I bought it and was too late to cancel the order. Looking to save myself the return hassle and get close to what I paid for it, save yourself shipping and taxes. - Compatible with AR15 and AR10 platforms, for mil spec lowers - Single stage, 3.25lb pull, short reset - Integrated spring loaded trigger pins make it a breeze to install - Made from 6061 Aluminum - Includes a magnetic flat and curved trigger face that is easily interchangeable w/o having to disassemble - Lifetime warranty