GHK are one of the most well known and trusted GBBR manufacturers on the market. With high quality parts and a very strict manufacturing process you will receive one of the most realistic RIF’s on the market, with strong blowback, realistic functions & incredible performance, GHK really do make some of the best GBBR’s on the market.
The GHK M4 GBBR 12.5” is the longer version of GHK’s M4 GBBR series, with a 12.5” barrel this RIF is best used in woodland or outdoor settings though can obviously still be used wherever.
Model: M4 GBBR 12.5’
FPS: 350 (depending on gas & weather)
Fire Selector: Full, Safe & Semi
Magazine Capacity: 42RDS
Method of Power: Gas
Hop Up: Fully Adjustable
Size: 78cm - 86cm
Type of Gearbox: N/A
With the New V2 system there are a lot of improvements over the previous design:
1. New CNC machine bolt carrier: CNC process with heat treatment. Harder material and smooth performance. 2. Improvement of bolt lock: made of new material (magnet design adoption); stronger and more stable. 3. New version lightweight magazine: 35% weight reduction compared to the old magazine. (ver1 magazine weight: 661g / ver2 magazine weight: 400g)
- New HOP-UP system, ver 6.0 new hammer, and stable bolt lock. - Steel made bolt carrier, CNC fishbone rail. - The main receiver is made of aluminium die-casting, which is high precision, high stability and good strength. - The stock is stronger 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 detailed heat sink pattern, which is provided by Montblanc's OEM manufacturer. 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. - Nitrided manganese phosphate as surface treatment, which has double cost compared to manganese. This makes 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 half mag a time in auto mode; 2 to 3 mags in semi mode.