Hi Chris,
Here are some pictures I took in the Brecon museum, I also had chance to handle the bayonet, measure and photograph it. The are a couple of different sizes of bayonet length, but use this version for what you want. I don't know if I'm teaching my grandmother to suck eggs here;
to convert for example this for a 1/16 scale (approx. 120mm) - convert the overall length 25" into mm's
25"*25.4(this is 25.4 mm per inch)=635mm and to convert for your scale divide by 16, so;
635/16 = an overall bayonet length for your figure of 39.6mm. Apply this to all the other parts to get the same scale measurements. The scabbard length for the triangular blade is 21.75". I also have the dimension for the bayonet frog but this is hand drawn, but if you need it let me know.
I would make the socket end of the bayonet with some round sprue and drill a hole in the centre. For the forged blade coming off the socket I would use a fine micro drill and bent pin to make this and pack out the bend with some putty.
I think for the scabbard again either putty or a combination of this and balsa wood shaped. I have done both versions in the past and both work fine.
I hope this helps, if you need anything else just give me a shout.
cheers
Richie





