I have two NOX muzzle devices for sale. One is for 7.62 (5/8x24) and the other is for 5.56 (1/2x28). The 5.56 was rockset on a previous build which is why there is residue on it. Neither have been been pin and welded. Looking to get 45 for each one. Please text me at EightThreeTwo-FourTwoEight-SixEightFourNine if you are interested or have questions. Thanks!