I know next to nothing about guns, and a lot of those look terrible to me. Half of them look like they would blow up your hand.
For a guide on what would blow up on your hand:
1-the zip 22 uses 22lr, so chances of blowing up are very low because that caliber is pathetic. That said. Drum mags are awful. Just in general, only the PPsH made it work. More info on that here:
And the zip22 itself is infamous for being a jammy piece of crap with some horrifyingly bad security features. Most notable for making gun jesus (ian) himself proclaim "I don't even know what that malfunction's called", more info on that here:
So they grabbed a gun that already jams like a motherfucker and added a mag that causes even good guns to jam every other shot. And then stuck a long range scope despite being a one handed weapon with notoriously poor handling and short barrel. Yeah that gun won't explode on your hand, but it also won't shoot and even if it does aiming it would be paingul.
2-The second gun's just a normal pistol. They just added assault rifle style twin scopes in a way that already places the first one too high to begin with, then added a knife that fucks with the balance and an extra-long mag. The mag and gun are fine so it's ok on the actual reliability. But forget about aiming with it and pistol bayonets are stupid. If it was just the pistol and mag it'd be much better.
3-I also don't know if this one'd pop. That mag is 22lr so I'm guessing it wouldn't, though it'd jam. But either way that thing doesn't look like the trigger group is even connected to the trigger (so it wouldn't even fire) and I have trouble knowing wtf I'm looking at. So... yeah who knows.
4-that gigarevolver won't explode on your face, but revolvers have no gas port, meaning they have a lot more recoil than normal guns, on top of that the gun seems to have a really high caliber. Like those chambers are for rifle ammo that ain't no handgun load. So that gun's gonna push all of that already excessive recoil straight into whoever is holding it. Now, with a stock it'd pull all that into his shoulder, which is still fucked up unless it's got recoil compensation. But with only a pistol grip that recoil would go straight to his wrist. So the gun itself might not explode but firing it will hurt. Now, handguns that hurt to fire aren't new. Ask the US army how adopting the Deagle went. But with a cannon that long there's no point in not having a stock. It's so hypercompensatingly pointless not to have one.
5-as said on the main post. Depending on wether the trigger group is right side forward or backwards that gun's either not gonna shoot at all 'cause the bullet would be behind the lever, meaning the hammer would move away from the bullet instead of striking it, or the hammer will go to the bullet and shoot it backwards. So it won't explode, but it might shoot the user and it certainly won't shoot the target.
6-that sadly won't explode. It's just a plastic case with a trigger connected to the regular trigger so it's as safe as a regular AK. But honestly I'd rather it did blow up. Because that is in the poorest of tastes. It ruins everything good about the AK in an attempt to bullpup it because bullpups are trendy.
7-this thing definitely will explode in your hand. The purpose of that cup is to contain the explosion. But the point of rifle nades (the regular kind) is that the rifle's stock is put against the ground to push the recoil down and help aiming. These looneys have cut the whole damned gun so the whole recoil would go straight into the shooter's wrist, and you don't get a stable support to aim it. It just makes a weapon that was already unreliable and prone to blowing up on the shooter's hand and they made it objectively worse in every way.
8-that again opperates like a normal rifle, but they grabbed a beautiful oldschool wooden lever hunting rifle, painted it black, glued it full of tacticool shit, and then just to finish off this bubba shit, they cut off the original stock just to glue to it a modern plastic shite that due to how they added it winds up going diagonal instead of straight, meaning either you'd have to grip it with your inner arm or if you actually try to put it on your shoulder it'd lift the gun too high to aim with it, unless you're andre the fucking giant I guess. Overall, I'd say it exploding would be preferrable to it's poor fate. It's like seeing a war hero tortured into being unable to even speak. So sad you don't know if it'd be better to try and help them live the rest of their lifes best as they can or it'd be more merciful to just old yeller them and stop their suffering.
9-that's a sturmgewher, the assault rifle of nazi germany, except someone tried to glue the mag to the handle as if it was a pistol, which is not how rifles work so that thing won't feed, and then completely cut off the actual lever and chamber, meaning that barrel is just a tube with no mechanisms. So this gun has already been put out of its missery, it won't work at all, but it's still sad to see such a historically important rifle reduced to this. That gun proudly defended berlin just to end in some crazy redneck's shed of horrors!!!!
10-man I have no fucking clue. They kinda destroyed the gas tube (meaning that shit doesn't have any recoil compensation, great idea!) To stick a p-90 mag on top of the barrel into a rifle that as the mag well under it shows is meant to feed from underneath. Shit is, if you completely rework the trigger and feeding mechanisms you might just get it working, so this might work. If that is done poorly it might also explode indeed. Most likely the change is just aesthetic and the gun doesn't work at all. At least I'm praying it is!