So I have a Senco micropinner that has no model # printed or stamped on it. I would guess about 3-5 years old and it has never worked. the drive piston and anvil are not returning to the top so it never catches a pin to drive it. I would have thought there was a spring under the piston to return it but took it apart and NONE. Possibly it should be driven back up by residual air pressure but I can shine a light up in and see the bottom of the drive piston from the bottom so I might be missing a seal at the bottome. So I need a schematic to see what is supposed to be there. I can tell you it is NOT the current model and it is not a finish pro 11 but looks similar. Same color scheme but the plate behind the drive piston at the top is stamped metal plate held in by four allen screws and has about a 1/4" plastic molded piece between it and the body. Also red and grey adjustment on the magazine If you send an email I can send a photo

i886.photobucket.com/albums/ac64/maninth...20150921_1527481.jpg

<a href=" s886.photobucket.com/user/maninthesea/me...921_1526271.jpg.html " target="_blank"> i886.photobucket.com/albums/ac64/maninth...20150921_1526271.jpg " border="0" alt="Senco photo 20150921_1526271.jpg"/>

Thanks
It shoots 23guage headless pins up to 1" I posted this on another forum I am a member of and the guys correctly pointed out that it looks almost exactly like the 23 gauge pinner from Harbor Freight
www.harborfreight.com/23-gauge-pin-air-nailer-68022.html

Which would probably explain why it never did work and also why it was on a closeout sale.

Definatly NOT the 2 in 1 18 guage pin nailer in the link from MTR.

On the other site the HF pinner has some good reviews basicly from what I have seen is if you buy one and it works it works better than many name brands at 2-4 times the cost. However like all HF there is a chance it will be a complete POS. I think I may get a HF just for the parts and take the chance that it works I doubt it would be much less to get parts from senco shipped out to Guam.