When I saw a 2009 fire control unit, aka hammer box assembly on Numrich's web site for $39 I thought this is either a typo or only one component of an FCU. It arrived today and I put it in with the guidance of the Sig Pro DVD from TGS. It fit fine and appears to function correctly. The ejector is a slightly different profile. Longish but very smooth,light DA pull.
Watch for a range report soon.
Numrich part #888250 for $39.95

xaircav, At that price I am going to have to pick up a few myself. I have been debating since your first post if I should pick some up. That is a killer deal so I am going to have to get some extra FCUs!

BTW, those FCU's are pretty simple to remove huh.

The trigger pull is on the long side but I have adjusted to it quite well.

I wonder how many Numrich has in stock and if this post will start a run on them. Yes, the FCU remove and replace was a breeze. Thanks for your help.

Shot it today. Worked great.

sweet! My extra FCU from Numrich's was shipped today. I have enjoyed the DAO trigger on my 2022 so much I am probably going to convert the 2009 to DAO as well.

Just an update and FYI I placed an order for a #888250 today, so I assume that they are still in stock. Will post as soon as it arrives.

Thanks for the information, folks!

I received mine close to two weeks ago, but I haven't been able to get to the range--not even over the long Labor Day weekend.

One thing I noticed when I gave the DAO FCU a quick look other than the already mentioned slightly different ejector profile, it looks darn close to identical to my current DA/SA SP2022 FCU. No, I wasn't expecting a huge difference, but, to me (and remember I only looked at it quickly), it's the same banana without the decocking lever and decocking lever spring. I thought there was supposed to be a different hammer, but it appears the same. There's even a hole for where the decocking lever spring would attach.

I hope to test it this weekend. I'm sure it will work fine, but I don't know if I'll like it. Whichever the case, I couldn't pass on such a great deal--I'll have a spare FCU at worst.