Fenix barrels are made of anodised aluminum and they feature an integrated shaft guide. The thickness of the barrels is 1.0mm with a diameter of 30x28mm. The shafts, made of AISI301 stainless steel, are in dia. 6.5mm for all models. The featured slings are Primeline Grey dia. 17.5mm for models 65, 75 and 85 and dia. 14mm for models 95 and 105.