Hello Everyone,
Thought I'd post my experience opening up and disassembling an NAA .22lr mini revolver to replace the hammer.
***This disassembly may void factory warranties, please refer to your firearm's manufacturer for additional information.***
Just to let everyone know first, the main hammer screw is a left-threaded screw (Part No. 4). This means righty-loosey, lefty-tighty. If you try to unscrew the screw in a traditional manner, lefty-loosey, you may skip threads and destroy the screw/frame as you are actually tightening it. This may not be the case for older models, please research before hand.
Disassembly is easy, reassembly is a pain in the butt. Keeping Part No. 12 hand spring in place was very difficult:
Unlike the .22 magnum version above, where the main spring has the room to be bent into position, the firearm needed to be ready for the sideplate with the main spring compressed under the hammer. I stuck a small diameter screw driver through the threaded portion of the right side of frame to act as the hammer screw to keep the hammer in place and the main spring compressed. This let me get the side plate on without loosing pressure. Make sure the side plate is completely flush to the frame, I used a vice grip on all corners to ensure the side plate was flush. After that it was slowly backing out the small diameter screw driver while I pressed in the actual hammer screw. Before the side plate was in place, the whole time I had my thumb over Part 12 as it popped off a few times.
Hope this may help someone somewhere, however NAA has a life-time warranty. Please take advantage of it!
Thought I'd post my experience opening up and disassembling an NAA .22lr mini revolver to replace the hammer.
***This disassembly may void factory warranties, please refer to your firearm's manufacturer for additional information.***
Just to let everyone know first, the main hammer screw is a left-threaded screw (Part No. 4). This means righty-loosey, lefty-tighty. If you try to unscrew the screw in a traditional manner, lefty-loosey, you may skip threads and destroy the screw/frame as you are actually tightening it. This may not be the case for older models, please research before hand.
Disassembly is easy, reassembly is a pain in the butt. Keeping Part No. 12 hand spring in place was very difficult:
Unlike the .22 magnum version above, where the main spring has the room to be bent into position, the firearm needed to be ready for the sideplate with the main spring compressed under the hammer. I stuck a small diameter screw driver through the threaded portion of the right side of frame to act as the hammer screw to keep the hammer in place and the main spring compressed. This let me get the side plate on without loosing pressure. Make sure the side plate is completely flush to the frame, I used a vice grip on all corners to ensure the side plate was flush. After that it was slowly backing out the small diameter screw driver while I pressed in the actual hammer screw. Before the side plate was in place, the whole time I had my thumb over Part 12 as it popped off a few times.
Hope this may help someone somewhere, however NAA has a life-time warranty. Please take advantage of it!