King Arms COLT M4 RIS Gas Blowback Rifle Sale

King Arms COLT M4 RIS Gas Blowback Rifle

King Arms COLT M4 RIS Gas Blowback Rifle 

Adjustable Power & Rate of Firing 

Crispy Metal Sounds & Smoother slide cycling 



COLT M4A1 Features: 

Cybergun Official Licensed Engrave Logos / Laser Markings throughout the gun 

COLT Metal Receiver (Easy Disassembly) 

Aluminum Alloy RIS Rail System Handguard 

14.5inch Carbine Length Outer Barrel 

Round Per Second Adjustment 

Power Adjustment 



Package with 50 Rounds Gas Operated Magazine (Also compatible with WA / Pro-Win M4 GBB Magazine without modification – optional) 

There are two valve blockers included in this package, which one of them is already installed. 



To adjust power, simply switch between higher / lower power valve blocker, it offers power range 280FPS~450FPS 

To adjust Rate of Fire, interchange four different sizes speed buffers to achieve your perference. (The thickest and thinnest buffers have been installed) By adding buffer, it reduce travel distance for the recoil spring, hence higher ROF can be achieved. 

Aluminum Made 14mm barrel extension tube 

Sling mount can be installed with any single, 2- or 3- point tactical sling