5.55mm x 300mm Aluminium Tube
7/32" x 12" Long Aluminium Tube
(Approx 5.55mm O/D x 300mm)
Please Note : For scratch building and custom work it's worth noting that each tube fits inside the other.
e.g. KS-8100 will fit inside KS-8101 and the same with the others KS-8104 fits inside KS-8105