ArmasTermin
The pistol bayonet isn't unreasonable. It has advantages over an unused rail. It's just not very practical.
the only way I can see of carrying a pistol with a bayo is in a custom holster for muzzle down shoulder carry or OWB with a very loose outer garment.
the thing adds length also.
I'd rather for ease of carry and maneuverability's sake not to have my pistol as long as a mk23.
best option in my mind. keep the pistol the way it is. more options for carry.
and keep a knife handy and separated
because if your carry weapon should ever be knocked away as a perp is running up on you when you attempt to draw, then you'll actually have something to fall back on.