Western Arms releases a new model but still based on their M4 GBB, called the WA M4 Delta, it comes in two flavours: the M4A1 Delta, and the M4A1 Delta CQB-R. These have new hop-up unit called BURAZAI (we didn't get what this means really). Of course, these come­ with the マグナブローバックシステム搭載 (We think this is the Magna Blowback System, but please prove us wrong). The CQB-R's length is shorter by just about 22mm than the regular M4A1 Delta.