Glock 17 Gen4 (T.Marui) CNC Steel 4-Cut Extended Outer Barrel

This steel extended outer barrel is made by precision CNC machines.  It fits Glock 17gen4.  The barrel tip end has 4-cut compensator slots.  A 138mm length 6.03mm inner barrel is included.  It is specially made for professional shooter and competition needs because it:

1) increases the shooting accuracy;

2) improves the smoothness of blow-back movement of slide;

3) has outstanding durability and reliability.

All products are made for airsoft only.  They are not made for real steel firearms.