GHK M4 RAS GBB ( Navy Seal Marking / 14.5 inch )

New HOP-UP system, ver 6.0 hammer, and stable bolt lock. Steel made bolt carrier & CNC fishbone rail. The main receiver is made of aluminum die-casting, which is high precision, high stability and good strength. The stock are more strong and not easily broken. The bolt is adopted by impact-resistant material with a German made connect spring. It is flexible, not easy to break, but easy removal and maintenance; which is also save gas for high airtight characteristic. The barrel has very detail heat pattern, which is OEM by Montblanc. Steel thin-walled, light weight, and hollow center, the whole process of producing barrel is almost the same level as real gun. The inner barrel is a precision one with 6.03mm. Dilute phosphoric acid manganese as surface treatment, which has double cost compared to manganese. This make the product no rust, and won’t scratched. The gas consumption of M4 magazine is larger than G5′s mag. M4 magazine can shooting 1 and 1/2 mag a time in auto mode; 2 to 3 mags in semi mode. Specifications: Magazine Capacity: 40 Length: 778-860mm Barrel Length: 370mm Weight: 3100g System: Gas Blowback, Semi / Full Auto, Hop-Up Muzzle Velocity: approx. 390-410 FPS w/ 0.2g BBs and Top Gas Package Includes: Gun, Magazine, Manual