This product is only compatible with gas designed specifically for Airsoft guns. Do not use lighter fluid or butane gas, as that will cause permanent damage.
The RWC GHK M4 SCW GBBR is a custom-built gasblowback rifle based off of the proven GHK system. Internally the parts have been smoothed and worked on by our gunsmiths to ensure the best performance and efficiency. Externally, the rifle is a short SBR pattern with a retractable stock and MLOK rail, included is a blast shield muzzle device.
No complaints on this gun at all. Kicks good, accurate to 65 meters out the box and how sturdy it is. Love this gun and if you get a chance to get this gun, it is a must buy