On the British version you will need your piece of tube with the slots cut in to push down on spring guide to enable you to tap out pin. Its difficult to line it all up( and hard to get trigger back) so once pin has moved enough,leave punch in the hole and as you push on your bit of tube you should be able to pull pin out with fingers. Remove your punch and ease pressure on tube. Guide and mainspring should come out. Ease piston out. Check if washer needs replacing (and whether you will have to drill lock pin out on German guns -refer to above post). Cleaned and lubed? Put piston ,mainspring and guide back in the cylinder and then the sleeve. With the German guns, push down on your bit of tube and locate the pin that holds the sleeve and then take your time to put trigger and pivot pin in. On British ones You push down and just locate your pin and use your punch or a slave pin to locate the sleeve hole with the hole on the other side of the cylinder. Take your time and wangle the pin through the sleeve,side of trigger,floating bit of trigger,other side of trigger, slleve and cylinder, ( your mate with the German one will be laughing). THIS WOULD BE MUCH EASIER WITH A SPRING COMPRESSOR. Hook on trigger spring and replace washers and end cap. Replace your barrel plunger and spring back in the barrel if you have had them out. GO TO PART 3