5KU CNC Aluminum 350mm M-LOK Handguard Rail System with Charging Handle Suitable For CYMA M5 MP5K PDW Series AEG Rifles Airsoft Black5KU CNC Aluminum 350mm M LOK Handguard Rail System with Charging Handle Suitable For CYMA M5 MP5A4 MP5K PDW Series AEG Rifles Airsoft Made out of CNC aluminum. 16 slots 20mm Rail on top. M LOK slots on the sides and bottom for modular accessory attachment. Accepts M Lok and modular rail attachments. Integrated left and right side QD Quick Detach sling sockets. Suitable For CYMA M5 MP5A4 MP5K PDW Series AEG Rifles Airsoft. Compatible with the CYMA