Sight and lug position on barrels

[Joseph Scott 0]

Received barrel that owner had installed sight and lug himself. Lug is too far back to accept bayonet, and needs to move forward. The correct dimensions of step for sight is 1-3/8" from muzzle. Sights are 1" long and this will leave 3/8" sticking out for bayonet mounting. The bayonet step is 2" back from sight step (3-3/8" from muzzle). The parts are pinned on with #2/0 taper pins x 5/8" long. All pins should enter on same side, not alternate sides. Use Loc-tite on parts and let setup before reaming for pins to prevent any rotation.