User blog comment:Agent Tasmania/MY weapons wishlist for MW3/@comment-3319515-20110224233628/@comment-3319515-20110227193212

There are various internal and external differences within the M249 and the MG4, some of which are noticeable, the Picatinny rail, the handle, the stock, the fire rate. It's like confusing an AA-12 witha Pancor Jackhammer.