Hexmag 120rd ECO magazine for m16 electric gun (black)

New mid-cap model made of hi tech tecno polymer  
made under license of HEXMAG inc. USA 
replica of the original tactical magazine used by SWAT team
stainless steel spring with hi performance and perfect bb feeding
hexagon patented shape give excellent grip even when wearing gloves
special injection molding to save raw material and release time
lower end top with interchangable color button
allows recognizing the bbs inserted in a second
compatible with m16, m4 Marui,g&p,dytac etc....