To find out what gun a bayonet is for, you should get on wikianswers.com and type in the info of the bayonet.
A bayonet.
Bayonet
The knife at the end of a gun is called the bayonet.
A knife on the end of a gun
On the bottom
I believe you have to get 75 kills with it, then you will unlock the bayonet attachment.
Try gunbroker.com. They have all kinds of gun- and gun-related auctions.
The M16 rifle uses the M7 bayonet. The scabbard for that bayonet is the M8A1.
Muskets, with a bayonet at the end.
In Gears of War the lancer is the gun with the chain saw bayonet
yes if you pick up a gun with one