We get to see the M4 -System again in this video by Vincent's Hobby Shop in the Philippines, the Double Bell 033A M4 S-System AEG, and they have it in stock... "Double Belle 033A M4 S-System Black is an electric airsoft rifle with a semi and full-auto firing function. It has a polymer body construction with magazine capacity of 300 rounds.

• 15 inch metal barrel assembly
• Flip up metal front and rear sight
• 10 inch picatinny top rail
• Semi and full auto function
• Metal magazine: capacity 300 rounds
• Polymer body
• Lipoly battery (bb tootsie)
• Tactical charger"