- Barrel Thread adapter to Convert M16x1 Right Hand to .578X 28 Male,
- Diameter of internal hole : 11.6 mm / .46", Suit for 7.62mm, .308, 9 mm, .40, .45 ACP
- 35 mm /1.4" Length
- Steel,
- Black
Total 10 sizes of different Barrel thread to .578X 28 Male adapters are available under TUFFORCE brand as list in web pages.