Some people have made the â€œweapons retentionâ€ argument, but I remain unconvinced. This is about as useful as a fish bicycle.
The reason man put bayonets on long arms is because absent ammunition or in case of malfunction, it allows the long arm to be used as a pike. Â I’m not sure what a pistol with a knife would offer that wielding a knife in your hand doesn’t. Â For retention, it would seem you’re far better off using the knife independently on an attacker while you try to secure your firearm with your strong hand. Â If you can bring your pistol bayonet to bear, wouldn’t you just be better off shooting the guy? Â Knives and firearms are both deadly force, after all.