M8A1[]
The 'M8A1' is, in reality, an Generation 2 XM8 Carbine. 'M8A1' is a U.S. Army designation for an XM8 that has undergone some improvements. 'M8' stands for 'Model 8' and A1 stands for 'Advance 1'.
The 'M8A1'.
The Generation 2 XM8 Carbine.
Chicom QCB[]
The 'Chicom QCB' is, in reality, a JS9 submachine gun with a carrying handle taken from a Magpul FMG9 attached onto the top rail.
The 'Chicom QCB'.
The JS9 submachine gun.
A JS9 with a Magpul carrying handle attached.