Replacement fibre optic for a Shibuya,AAE,Axcel,Shrewd,Avalon and other recuver or compound  sight pins.
 
Diameter thread available:
0.4“  （1.0mm）for Shibuya,etc. Sight Pin
0.29”（0.75mm）for AAE, Shrewd, Avalon, etc. Sight Pin
0.19"   (0.50mm) for Axcel,Avalon, etc. Sight Pin
 
Each pack incl. 2 pins,(red and green fiber optic). each pin is 250mm(25cm).