I've had a couple of them apart.

by Hoot , Diversityville, Liberal-sota, Thursday, July 03, 2014, 12:19 (3738 days ago) @ Frank S

The trigger group is usually held in by a pair of pins. Parts and mechanism are pretty simple. Some parts are available at Numrich. Reassembly will require you to use a couple of slave pins...unless you have 3 hands with 7 fingers each. Either way, you'll have to hold your tongue just right.