Prometheus x SIG 6.03mm EG Tight Bore Inner Barrel for SIG AIR MCX VIRTUS SBR (295mm)

Prometheus x SIG 6.03mm EG Tight Bore Inner Barrel for SIG AIR MCX VIRTUS SBR (295mm) High grade precision barrel at 6.03mm diameter for extra power and precision shooting Suitable for SIG AIR MCX Virtus SBR AEG Rifle For custom upgrade user, you can choose a longer barrel PROMETHEUS EG Barrel by LAYLAX (JAPAN)