Classic Army USA - PDW, but with those T H I C C magazines! M4 mags are the easiest to get ahold of in airsoft, put em together with a short barrel
BOLT B4 PDW M4 Airsoft AEG Rifle (Color: Black / Short Suppressor), Airsoft Guns, Airsoft Electric Rifles - Evike.com Airsoft Superstore
Tippmann m4 shorty : r/airsoft
Army Officially Ditches Plans for a New, Short-Term Rifle Replacement
Evike.com Custom SIG SAUER ProForce MCX VIRTUS AEG w/ Guardian Mock Suppressor & Short Barrel Kit (Color: Flat Dark Earth), Airsoft Guns, Airsoft Electric Rifles
Benelli M4 Entry Short Barrel Shotgun 12ga
Monkey Depot - Rifle: Mini Times M4 Carbine
M4 SBR 5.56 Rifle - YouTube
020mag.com Airsoft Magazine: Do you know the short version of the Amoeba?
Colt 6933 Commando M4 SBR Short Barrel Rifle
M4 M16 Selective Fire Short Barreled Rifle 3D model | CGTrader