Quote Originally Posted by look no hands View Post
Are you sure there's no screw thread on the top of the barrel at the muzzle to fix the front sight, my S carbine has a fixing on the front of the maxigrip rail to fit a Williams style sight, may be yours has been removed but there should be a fixing thread at the muzzle.

Pete
It's an LPA sight made in Italy 😉👍 they still make them but not in the bsa 1/4" size I know mines missing one