Prometheus 6.20mm Delta Strike Barrel for Marui M4A1 / R.I.S. / SR16 / S-SYSTEM / SG551 (ALL+) (407m

Prometheus 6.20mm Delta Strike Barrel for Marui M4A1 / R.I.S. / SR16 / S-SYSTEM / SG551 (ALL+) (407mm) High grade precision barrel at 6.20mm diameter for extra power and precision shooting Suitable for Tokyo Marui M4A1 / R.I.S. / SR16 / S-SYSTEM / SG551 AEG Rifle For custom upgrade user, you can choose a longer barrel PROMETHEUS EG Barrel by LAYLAX (JAPAN) This allows for precise, long range shooting, with 60-70 meter accuracy at under 1J. Length: 407mm