MT021 Aim Sports Carbine Rail System For M4/M16 Airsoft Rifle

The M4 Carbine Length Drop in Quad Rail is an easy to install upgrade for a basic carbine. Being a two-piece design for easy installation.

AIM Sports M4 Carbine Drop in Quad Rail Handguard, Accessories & Parts, External Parts, M4 / M16 External Parts, M4/M16 Modular Railed Handguards - Airsoft Superstore

M4/M16 Modular Railed Handguards - Airsoft Superstore

AIM Sports M4A1 Carbine Length Drop-In Full Metal Quad Rail 6.5in

AIM Sports M4 Carbine Drop in Quad Rail Handguard - Hero Outdoors

AIM Sports M4 Handguard Quad Rail, Carbine Length

Aim Sports Inc

Accessories & Parts, External Parts, M4 / M16 External Parts, M4/M16 Modular Railed Handguards - Airsoft Superstore

MT021 - Aim Sports M4 Carbine Quad Rail - Black - AR15Discounts

M4/M16 Modular Railed Handguards - Airsoft Superstore

AIM Sports Free Float Carbine Length Quad Rail - Ver.3, Accessories & Parts, External Parts, M4 / M16 External Parts, M4/M16 Modular Railed Handguards - Airsoft Superstore