M15A4 RIS is the M15A4 Carbine which equips with the RIS (Rail Interface System) handguard ,  as the standard equipment for the M4 / CQBR used by US Special Force based on the SOPMOD block I (Special Operations Peculiar Modification) developed by USSOCOM. It has a 14.5 inch barrel, allowing its user to better operate in CQC (Close Quarters Combat). It is heavily used by the US Military and slated toeventually replaced the M15 rifle for most combat units in US army.

Features:
14mm”-” Knight M4 type Flash Hider.
Metal RIS Handguard with with 14.5 inch outer barrel.
2 pcs of RIS Cover and RIS fore grip inclided.
Comes with a PEQ-2 Battery Box which can store up to 8.4V Large type battery (small plug).
Comes with metal frame with ARMALITE logo and marking and comes with a removable carrying handle.
Standard 20mm rail on the upper frame for rail attachments.
Constructed of Ver 2 7mm Metal Bearing Gear Box with new steel gear set.
Bolt catch function available for easy Hopup adjustment.
Comes with Nylon and glass Fiber made hand grip and retratable stock with 6 Positions Collapsible.
Ready to go for 350 FPS.
Included 300 rounds M4 Hi-cap Magazine.

** Please note that Battery and Charger are not included.**

Specifications:
Length: 805mm, 885mm (Stock extended)
Barrel Length: 363mm
Shooting Mode: Safety, Semi-Auto & Full-Auto
Weight (g):  3380 (gun with mag), 4200 (with box)
Gear Box:  Ver 2 7mm Metal Bearing Gear Box
Color: Black
Battery: 8.4V Large type battery (small plug, in battery box)
Magazine Capacity: 300 rds
Material: Metal & Nylon and glass Fiber
Bullet type: 6mm BB
Power (Muzzle Velocity): 350  FPS
Manufacturer: Classic Army