Bayonet plug

Abstract

An easily insertable and removable plug fitted to the barrel attachment hole to transform a bayonet knife into an efficient fighting knife that a Marine or Army soldier can use. This combined bayonet knife and plug within its barrel attachment hole provides for the protection afforded by standard fighting knife guards, that is, a forward guard for the thumb. When used as a fighting hand-held knife, the plug can be inserted into the barrel attachment hole from the handle side and if the bayonet needs to be placed back on the rifle, the plug can be popped out of the hole from the knife blade side of the barrel attachment.

1 . A bayonet knife plug comprising:
 a plug formed to fit within a barrel attachment hole of a rifle bayonet knife, said plug being sized to be inserted within said barrel attachment hole and to maintain its position within said barrel attachment hole while said rifle bayonet knife is used as a hand-held fighting knife, and said plug further being removable from said barrel attachment hole.   
     
     
         2 . The bayonet knife plug according to  claim 1 , wherein said plug is generally round and has a first portion that has a first portion diameter sized to be larger than a hole diameter of said barrel attachment hole, said first portion being made from a generally rigid material which engages in a face to face relationship with an outer surface of said barrel attachment perimeter surface;
 said plug further having a second portion spaced-apart from said first portion and an intermediate portion, said intermediate portion being integral on one side to said first portion and integral on an opposite side to said second portion, said second portion being made from a flexible material and having a second portion diameter sized to be slightly larger than said hole diameter of said barrel attachment hole, and said intermediate portion having a thickness proximating that of a depth of said barrel attachment hole and a diameter sized to fit within barrel attachment hole.   
     
     
         3 . The bayonet knife plug according to  claim 2 , wherein said first portion is made from material selected from the group consisting of plastic material, polymeric material, hard rubber material and metal material. 
     
     
         4 . The bayonet knife plug according to  claim 2 , wherein said intermediate portion and said second portion are made from a flexible elastomeric material. 
     
     
         5 . The bayonet knife plug according to  claim 2 , wherein said intermediate portion is made from material selected from the group consisting of plastic material, polymeric material, hard rubber material, flexible elastomeric material and metal material.