Quote Originally Posted by webleybsa View Post
Hi fellow airgunners

Thanks for the speedy response

The gun is a bsa with lincoln jeffries patent stamped on the underlever. Serial number is 14614, barrell length from muzzle to centre of cocking tap is 19.5 inches.

Piston chamber from the centre of tap to the screwed on trigger housing is 9 inches. the underlever is of the stepped crooked type.

many thanks
Had a quick look at home...your gun sounds like a Imp Mod D from the dims you give.....if the patent on the underlever is numbered 8761/04, then this all ties up.........the link I have is 6 and 3/16" from the centre of the pivot hole to the front edge of the piston engagement lug.........PM me if you want to test fit it, as I am Worcester sat a.m.