XukeLho

Hello guys, I own a https://www.taiwangun.com/assault-rifle-aeg/m904h-fire-control-system-edition-de I'm not a technitian and I'm a bit afraid of opening the gearbox to take measurements myself so I'd like your help on this one. I want to calculate the proper Cylinder / Barrel - Ratio of my gun, but for that I need the cylinder information (Diameter, length and volume). If anyone owns one of these, knows someone who owns or can link me a sheet with these values, I'd greatly apreciate it. I understand that I'm asking for someone to go through alot of trouble, just to give me some advice.

Again, this is not to discuss what the mouthguard is mainly used for. But to understand why people that use mouthguards in airsoft only protect the top teeth.

I understand what mouthguards are mainly used for, and using them in airsoft was just a byproduct. But if using them in airsoft is just to protect BB impact from chipping your tooth, the lower teeth are sometimes exposed. I understand this following example is not the case for everyone but for people like myself (I use a mesh btw) that play with theyr mouth wich exposes the lower teeth. This is not a post about what is better or what isn't. Its more of a 'conversation' to satisfy this curiosity of mine. People that use mouth guards use it because they are obliged to? If they are willing to protect theyr upper teeth, why aren't they protecting theyr lower (because it isn't mandatory)?

As the title indicates, why people that use mouthguards only use them for the top teeth and not the lower teeth? Is it because it only matters to protect the 'showing' teeth?

Can it play a DMR/Sniper role out of the box or does it need upgrades? Does it accept standard M4 upgrades like hopup and inner barrels or has proprietary parts?