. I have set it into quite a few various firearms with various calibers ranging from 7.62, 9mm, 5.fifty six, ect. Its ran flawlessly in every one. I did not have to swap buffers or springs or everything. Just flip to third placement and she's able to go.. Many thanks https://kameronbsfqw.look4blog.com/74294712/5-essential-elements-for-frt-15l3