HK45 (T.Marui) CNC John's Comp set

This set is made by precision CNC process and electroplating finishing.  It includes:
1) steel outer barrel,
2) 6.03mm X 177mm copper precision inner barrel,
3) barrel recoil spring and polymer barrel bushing,
4) aluminium compensator,
5) allen wrench (for installing the compensator to the barrel)

The smooth surface of outer barrel and barrel spring ensure reliable and smoothness of recoil action.  The long 6.03mm inner barrel provides higher precision and longer shooting range.  However, the original HK45 short inner barrel cannot be used in this compensator set.