Airsoft MK1 rail / RMR sight mount

Rail mount for airsoft MK1 pistols. Dovetail part slots in where rear sight normally does and the rail glues on top of that. There is a front sight to match for 35mm OD suppressors. The sights have 1.4mm holes which need drilling out to 1.5mm to accept 6x1.5mm tritium vials, e.g. https://www.ebay.co.uk/itm/Tritium-Lamp-Vial-Tube-Capsule-Trigalight-6mm-x-1-5-mm-Glow-in-the-Dark/131195842787