A bunch of Britannian guns!

At the top is the Edwards Battle-rifle, aka the "Slab"- Chunky, sturdy, reliable, current service rifle of the Britannian military and used in almost every branch. Actually got developed as a response to the Korean/Japanese (It is a LONG story) Jadong-ui rifle. Getting your face bashed by one of these is almost as lethal as getting shot by it. Uses fully powered rifle cartridges, although you somehow don't really feel like you are.

The pistol under it is the Hunter Double-Barreled Pistol, Usually used by The Royal Secret Service. When hunting for anything that isn't a normal human, they usually load them with a mix of hollow point and armour piercing ammunition, with the pistol firing an armour piercing bullet followed by a hollow point one, breaking any armour, or natural exoskeleton and then, well, you can figure it out. Being on the wrong side of one of these is usually a death sentence. 

Below it is the Henry Semi Automatic Revolver, The service handgun of the Britannian police, and a favorite of many competitive shooters. Uses recoil to slide the cylinder to the next chamber. also has that nifty bit at the trigger guard, which allows the user to slot weights, customizing the gun to their preference.

To the right is the Victoria SMG, used mostly by vehicle crews and the royal air force. It's not perfect, but it's cheap, reliable, and kills most things pretty fast.