Take Aim Custom Colt Defense M4 - Take Aim Guns, Palm Harbor
EMG Custom Built Colt Licensed M4 SOPMOD Block 2 Airsoft AEG Rifle with Daniel Defense Rail System (Model: 12" FSP M4A1 / Dark Earth), Airsoft Guns, Airsoft Electric Rifles - Evike.com Airsoft Superstore
Fully Custom M4 by BijuuMaker4 on DeviantArt
Evike Custom KWA VM4-A1 V2.5 / M4 RIS Carbine Airsoft AEG Rifle, Airsoft Guns, Airsoft Electric Rifles - Evike.com Airsoft Superstore