if it was you that had the work done, and had sent it back?? what did you do with the packaging that is came back to you in??? the parts are most likely still in the box, "under the flap" as they stamp and note on the interior...... without the original parts that were removed when the safety update was done, all the parts can be found and made to be used, and the part "needing" proper fitting would be any newer or different "pawl' that is out in the gun, at least use the pawl from the 'safety update' as that was "fitted" to your gun.....I'd guess all the work can be found on You Tube someplace, as it would be too much for these nontyping fingers to put in order, easier to use a pen or pencil..............or as I have many others do, stop by visit and I'll do it for you, show you how..... 8) :roll: :wink: