If military-style M4s are your poison and you need a new platform for close quarters, the DA-C02 CHARLIE™ M4/AR-15 CQBR AEG is a sure choice. This AEG is styled after the CQBR (Close Quarters Battle Receiver) configuration of the M4A1 rifle, a drop-in upper receiver kit issued to Army Rangers, Delta Force, and Navy Seals, fitted with a 10.5-inch outer barrel and KAC RAS Style quad railed handguard. To furnish the CQBR M4 configuration with some modern ergonomics, Delta has added a gunfighter mod.3 style pistol grip and the awesome Delta Armory battery stock and enhanced receiver, complete with gripping texture on the magazine well and a built-in enlarged trigger guard. As a replica of the Delta Armory CHARLIE™ line, the DA-C02 is constructed primarily from high-density polymer with alloy trim parts to provide manageable weight so you can make energetic advances all day long.