Specna Arms' high-quality precision barrel for electric airsoft guns. Specna Arms' precision barrels come from the ZCI factory and are excellent value for money. The inner diameter is 6.02mm.
The barrel comes with O-rings on top, which makes the barrels fit more tightly inside the outer barrel. The material is stainless steel and there are several notches in the barrel for mounting in a hop unit, so the barrels can also fit in TM M14 units, for example. In addition, the hop windows of the barrels are angular in design, which also allows for easier R-hop installation, for example.
The barrels come in standard lengths, but a longer barrel can be installed if desired, for example by using an outer barrel extension or a "silencer" inside which the inner barrel can be hidden.