sorry I meant the vintage after market ones ... or egun cheers
Fitted a Gehman 523 with a steel pin to fit, actually went for a 22mm tunnel and high end glass element and have to say the sight picture is superb and with the 523 being a basic black tunnel it looks ok, ok not as vintage looking as the original but I can live with that considering how much nicer it is to shoot and at the end of the day that's why I own it
Steyr LP10, Steyr LP5,
Vintage Collection - Walther LP53, HW77k Venom, BSF S20 Match, Original 35, ASI Target plus lots more