Fit for M4 Series Airsoft.
Install any red dot or scope onto this 20mm scope mount base.
One of the aluminum railed handguard, 2pcs rail cover.
2 Handguard constructed of Aluminum with 4 RIS rails totaly.
Allow attachment of Scopes, Flashlights & Laser Sights, Foregrip.
Replaces the standard front handguard of the M4 Series.
Hole Design offers increased heat dissipation for both of them.
Upper Handguard length: 210mm
Lower Handguard length: 162mm
Weight with Box: 417g
Manufacturer : D-Boys