Outer barrel extension made by XT. Excellent quality, aluminium, 14mm CCW thread. Top and bottom of each extension has a tiny chamferred edge so the joins are visable. Can be used on it's own or with part of the set.
Specifications:
Length: 1 Inch / 25mm (not including the thread)
OD: 18.8mm
Colour: Black
Weight: 13g
Thread Direction: 14mm - CCW