User blog comment:JoeRamirez/Call of Duty Modern Warfare 3 Weapons Wishlist./@comment-90.202.102.9-20101208215709/@comment-28584497-20101209000136

There ARE bayonets designed for the AR-15 family of rifle, but they are very rarely used in-combat. As a matter of fact, I think they'd be more useful as fighting knives than real bayonets.