~128m/s [420ft/s] At 25°C with 0.20g BBs
PUFF DINO Green Gas-Classic 12KG
GHK M4A1 GBB Rifle, 40 rounds Metal Gas
Magazine and Original Box, Speed Loader
Adjusting the Hop up was easy, All you need to do is to remove the lower rail and that reveals the hop up dial. To Spin the hop up dial is really hard, we recommend using a flat head screw driver to prevent damaging the dial. The stock setting can take BB weights up to 0.48g however everything below 0.32 were pretty much over hopping, not so effective to use.
This GHK M4A1 has got some insane ranges, besides all the none effective shot from 0.32g and below, 0.36g and above all had a effective range of 70 meters, which received a solid super icon for this category. We recommend 0.36g and above BBS for this gun.
Just like the range test, the light weight bbs were over hopping crazy so we were not able to record any data before 0.25, however as the bb weight increase, the results got a lot better, the heavier it gets the smaller the grouping is.
This gun is a bit on the hot side, which it was shooting 128mps at the 25 degree Celsius, and at 40 degree it was shooting a average of 144mps. If you are going to play the gun during a hot day, try not to shoot your friend close, and note the field regulations!
Is 4 second legend true? The Answer is Yes the 4 second legend is true! Despite the fact that charge till its full gives the gun a crazy 122 shots gas efficiency and 4 second was 64 shots. However for better efficiency we highly recommend the 4 second charge, plus by the time you already finishing firing one full mag.
This gun is not a fast shooter the rate of fire was only 13 rounds in a second, but who fires full auto with a GBB rifle in games lol.