British No.4 Mk.II* Bayonet

Availability: Out of stock


This MkII* bayonet was made by P.S.K. The markings are clear on the right hand side of the socket.

The bayonet and scabbard are in excellent condition, retaining most of the original finish, and showing some of the rough manufacturing in the UK at the time.


A simplified version of the No.4 Mk.I bayonet, the No.4 Mk.II eliminated the milling required to create the cruciform blade. It was otherwise identical to the Mk.I, with the bayonet and socket one solid forging. Three firms produced the No. 4 Mk. II: Singer in Scotland, the Savage Stevens Co. in the USA, and Long Branch in Canada.

The No.4 Mk.II* further simplified production of the No.4 bayonet, with the socket and blade being two separate forgings. This lowered costs and allowed manufacture by subcontractors. Its also dispersed production, mitigating the risk of production being interrupted by bombing. The two-piece construction gives the No.4 Mk. II* a characteristic stepped join between the blade and socket. It was produced by four firms: Prince-Smith & Stells, Howard & Bullough, Lewisham Engineering, and the Baird Manufacturing Company. The finish varies considerably between manufacturers.

The No.4 Mk.III was the final, and crudest, form of the No.4 bayonet. The socket is fabricated by welding together seven sheet steel stampings, eliminating the socket forging process altogether. Even the spring plunger is a stamping. 196,200 were produced, by Joseph Lucas Ltd, Birmingham. It was declared obsolete in 1946.


Manufacturer P.S.K.
Overall Length 254mm 10"
Blade Length 203mm 8"
Weight (Including Scabbard) 0.33 Kg 12 oz
Scabbard Steel
Fits All No.4 Marks