Reid is right. If the limb is alphaware, everything in the limb needs to be alpha. If it's used, then you get a discount on all of the bells and whistles.
One thing I'll point out is that I've never been fond a Criminal SIN. If you actually read the description, it sounds pretty terrible. Like, actually sounds like more of a significant hazard to a Shadowrunner's well-being than either of the Corporate SINs. Expect law enforcement to be constantly checking up on you, if not outright framing you for crimes you didn't commit.
I would usually warn people away from the Firearms skillgroup (how many ways do you need to shoot things?) but since combat is your guy's main shtick I can see the appeal. It also looks like you have a good range of equipment, too. Make sure you buy a vehicle of some type to lug all those guns around in, though.
I always recommend keeping Body at an odd number, because that's where the extra hit box happens.
I'm not sure what your nuyen and essence situation looks like (probably pretty grim, to be honest, with all that 'ware), but Enhanced Articulation might be a good idea. In general, 5 is a little low on the Physical limit for a street sam. Not a huge deal since you're gun-centric, but you'll be limited to 5 hits with your cyber-spurs, which could potentially suck.