Re: Bacura Zerafa Back Story
Keeping in mind that ultimately you should do what is fun and cool for you with your costume, and that I am giving free advice which is the one thing in the world that nobody EVER wants to take for free, even if it's good, my response is below your text. I do suggest that if that's the firearm you're using, include the stock. Or go for no/small weapon just in case the event you're attending has got overzealous security. It's a sad thing to watch a trooper have his blaster taken away, or see someone tell Boba that his backpack no longer has jets.
So you're talking about nearly 18" in length for those of us who speak American. To put that into perspective, maybe even with weight, get yourself a plastic 'with a handle' 2-liter container of milk (or juice, whatever - just make sure it has a handle and it is full).
Tape a laser pointer (on) down on the top edge, ie the part opposite the handle, with the laser pointer aimed down. This is the muzzle of your gun, the bottom end of the milk jug.
Now. Grab it by the handle and aim it quickly for a precision shot.
Ummm hmm. Yep. Heavy, messy, hurty and worst of all, not so effective. If you need speed, you are not going to get precision shots with a weapon of that mass and bulk. If you need precision shots, you can and will take the time to set up your shot properly.
May I suggest that for Chow-Yun Fat pistol-wielding coolness, you mod a couple of little squirt pistols as hold-out pistols? And honestly... if you have a lightsaber of any sort, you skip anything but a small WW2-style blaster. Cuz ... lightsaber = great equalizer.
My favorite uncle, who took a hand in rearing me, was first a cop and then an FBI agent - I was brought up with gun knowledge. They're a lot heavier than you might think, even the Glocks. The reason the people with guns in the movies look so genuine is because it turns out that surplus guns were cheaper than props - so every one of those actors, from Stormtrooper to Han Solo, is holding a real (safety-checked) firearm.