Carbon Rail Barrel fn Speargun upgrade

O.D.: 29.5 mm   I.D.: 26.5 mm - 26.7 mm
Wall Thickness:  1.5 mm ( out of stock )
Free 2 Pecs water stopper installed.
Length : 100cm-110cm-120cm
offset: (Rail height) 2.3 mm

Please Note:
This is DIY product in special order so you need to check your parts careful and 100% can fit our DIY parts, you just buy it. 
Before you order this produce, please make sure you have ability to modify your parts to match our barrel spec, in this special order we are not accept refund and the barrel is not for customer order for test purpose.