A CMag M4 handguard.
M4 Handguard MP is a Weapon Attachment in DayZ Standalone. As the name implies it can only be attached to the M4A1. The M4 Handguard MP provides twice the dispersion reduction of its RIS and plastic counterparts, equal to that of the CQB and OE buttstocks. It can be painted black or green with Spraypaint.