From what i can see it looks fine for the most part. it's not without it's flaws but then again nothing this day and age is.

the problems i see is you have two 9mms and a gunblade (total of 3 weapons for a roll that's focus isn't combat). Now having studied these in college (yes, odd little history articles are available on their design and functionality once you get past the basic stuff) there's a few problems i find with the one you're using. First and foremost, unless it's designed to fire off it's round while the blade is inside the target, firing it any other way with a round larger than a 9mm (even that's pushing it a bit) will cause pretty unfortunate issues for the user due to it's handle. arching your wrist down with that much weight at the end of it and then having the recoil jolt your wrist like that, not gonna be a pleasant experience. another issue with it is there is no clear trigger however the "barrel"is oddly somewhat visible. now at that angle it's difficult to determine the size of the round coming out of that thing but it doesn't look like a .45 would be that out of the question. That's not a good thing. bigger round, bigger kick. Fatal flaw however of the weapon you have there is it's blade of all things. It has no tang to it. meaning it's simply just screwed in, tac welded, or clamped in place with a series of pins. Short of what could potentially be a long description of why that's a bad idea for this setup anyway is lot of vibrations or sudden impacts will likely cause the blade itself to come out, turning the thing into a very awkward pistol with possibly the worst design for recoil management out there. 

now don't get me wrong. Gunblades were actually surprisingly effective! the things that held them back is increased weight, most of them were single shot , they could be very high maintenance, were extremely technical, and for the price of one gunblade one could normally afford around 4 or 5 pistols. the more effective gunblade designs  were essentially a pistol with an integrated elongated bayonet with a bit of extra reinforcement and a slanted grip. the straight up and  down grip doesn't really do it when it comes to fine control or for that matter control at all with a long object with a bit of weight at one end that's also meant to fire bullets.