. I've put it into many diverse firearms with various calibers ranging from 7.62, 9mm, 5.56, ect. Its ran flawlessly in each. I didn't have to swap buffers or springs or anything at all. Just flip to 3rd placement and he or she's willing to go.. Many thanks for the https://emilianomcsix.blogoxo.com/36487557/a-secret-weapon-for-rarebreed-triggers