bonsaidiver....what kind of lock?? flintlock??hmm either way it should have the same pieces i had trouble with..make sure you take a few GOOD pics....to the right of the main spring theres a few little tiny buggers..forget the name but they release the lock and half cock and release it....theres a few pieces back there...and kinda odd shaped and small.....dangit..i wish i had my gun here...i forget what part i had trouble with....but its where the main spring connects on the right side......and getting it through the hole on the left...the spring is VERY stiff...proper tools i could have probably done it easier and quicker.....but be careful and take your time......it WILL go back together...takes the right touch...i dont know if all locks are like that or not...probably....i just know i had trouble getting the main spring in and another piece aligned and in with it.........good luck.......take good pics so you know how them little buggers go!