One of the most common accessories for the battle rifle is the bayonet and its scabbard.  The next two pictures show the nomenclature and location of the various parts of a representative bayonet and its corresponding scabbard.  In this case, the bayonet is for the Indian 1A rifle (a non-FN licensed copy very similar to the Australian or British L1A1) and a Mk 2A bayonet scabbard and Pattern 37 bayonet frog.  The third photo shows the bayonet inserted into the scabbard.

 

 

The bayonet blade has a tang that is inserted through the cross piece and attaches to the pommel.  The pommel contains the press stud and the mortise (or T-slot).  The flash eliminator's bayonet stud is inserted into the mortise (or T-slot) of the pommel and its end engages the hole in the muzzle ring of the cross piece.  The press stud snaps in back of the bayonet stud to lock the bayonet to the flash eliminator of the rifle.  The wooden grips are attached through the bayonet tang (under the grips betweem the cross piece and pommel) by two screws that go into threaded escutcheons installed in the left grip panel.  (On Commonwealth C1 and L1A1 bayonets, the grip panels are made of metal and the they are permanently riveted through the bayonet tang.)  The cross piece butts up against the back of the blade and is brazed or swaged to the tang.

 

The bayonet blade has several parts as shown in the photo.  The ricasso is the part of the blade just ahead of the cross piece and before the edge of the blade.  The edge of the blade is sharpened to the tip.  The side oppose the edge (or back) is not sharpened.  The fuller is sometimes called the blood groove and runs about three-fourths the length of the blade. The false edge marks the transition point between the back of the blade and the tip.  It is not sharpened and serves to aid penetration. 

 

  

 

The Mark 2A bayonet scabbard is a composite construction composed of the locket made of metal, the scabbard made of leather, and the chape made of metal that forms the tip of the scabbard.  The metal locket has a reinforcement end through which the blade passes, called the throat, and provides a mounting surface for the frog stud.  The bayonet frog is made of cotton webbing.  The scabbard is inserted through the frog until the frog stud emerges from the gap in the frog.  The grip strap slides over the end of the bayonet's pommel to secure it in the scabbard.

 

 

 

The bayonet inserted in the scabbard.  Notice how the grip strap on the frog secures the bayonet in the scabbard.  Other frogs may use a two-piece strap with a stud fastener.  The open loop of the frog slides over the web belt that carries the soldier's water bottle, suspenders, ammunition pouches, and other kit.