Thanks. Already had barrel off, cleaned and re greased the lock up. Its never been apart so will be on original spring. I used to have a 77 so ive stripped weihrauchs before. Looks to be full of thick grease though, will be nice to lube it up properly. I have a tin of very high moly content grease thats very thick, almost paste thats done wonders for my bsa's. Its ancient american military old stock