New in packaging kit Includes A2 Flash Hider and a Crush washer.
1/2 x 28 Thread
Manganese phosphate finish
Mfg. Part No.: G2-K031-A000-OP
UPC: 712038921515
1/2x28 threading
For caliber 5.56/.223Compatible with any 5.56 mm /.223 Remington with 1/2 x 28 threadingSA160055-QS