CYMA Sport Full Metal Receiver M4 RIS Carbine Airsoft AEG Rifle

Valken ASL Series Polymer M4 RIS MOD-L AEG Airsoft Rifle

VFC M4A1 SOPMOD Airsoft AEG Rifle w/ Avalon Gearbox – Simple Airsoft

Airsoft Assault Rifles at - Page 5

M4 Series Airsoft Rifle Collection - eHobbyAsia Airsoft

Echo1 Platinum Edition M4 RIS Basic Series Airsoft AEG - URBAN GRAY

CYMA Sport Full Metal M4 AEG with 13 UX Modular Handguard (Color: Black), Airsoft Guns, Airsoft Electric Rifles - Airsoft Superstore

CYMA Sport Full Metal Jungle Carbine M4 with RIS Handguard AEG – Dee Zee Airsoft

Lancer Tactical Gen3 M4 RIS SD AEG Airsoft Rifle

CYMA AEG Mag Compatible Full Size M4 Airsoft Spring Powered Rifle (Model: M4 RIS / Reload Package), Airsoft Guns, Air Spring Rifles - Airsoft Superstore

Colt Licensed M4 CQB-R SOPMOD LiPo Ready Airsoft AEG Gun w/Metal Gearbox

CYMA Sport Full Metal Receiver M4 RIS Carbine Airsoft AEG Rifle (Package: Add 9.6v NiMH Battery + Charger), Airsoft Guns, Airsoft Electric Rifles - Airsoft Superstore