Prometheus 6.03 EG Barrel 128mm (G&G ARP 9).

Maple Leaf 6.02 AEG Barrel 540mm.

Maple Leaf 6.02 AEG Barrel 590mm.

Prometheus 6.03 EG Barrel 155mm (Krytac PDW).

Prometheus 6.03 EG Barrel 310mm (Krytac LVOA-S).

Lonex 6.03 Enhanced Steel Inner Barrel 715mm.

Lambda 6.03mm AEG Inner Barrel 363mm.