G&G CM16 ARP9 & ARP556 BEU Battery Extension Unit CTM This mesh mask also does

This mesh mask also does not muffle your voice

Bottom of the accessory rail has custom machined lugs to lock the accessory rail from moving forward or aft on the M-LOK® & KEYMOD™ slots

CONVENIENTLY ADDS TWO SLING POINTS TO YOUR M4/M16

Allows the user to raise their optic 0

G&G CM16 ARP9 & ARP556 BEU Battery Extension Unit CTM This mesh mask also doesThe Battery Extension Unit (BEU) is designed speciallly for the G&G ARP9 556 series used to connect a larger battery to the gun while keeping it external to the gun's body. This allows players to use higher capacity batteries for longer gameplay without compromising the aesthetics or functionality of the airsoft gun.