Maybe I'm stupid or something but the UK MoD parts list for the No5 rifle just lists BAYONET No5 Mk1 with the B1/CR xxxx part number.......... I look at the L2A3 parts list and there it is again, exactly the same............ Ah....., I see now.......... Is this a commercial thing invented by the dealers, similar to that of a bayonet for the Lanchester differing somehow from the bayonet for the No1 rifle?