I found a 1076 that was one of the approximately 2500 produced and sent to the FBI at Quantico VA. There were thousand of others produced but only the 1st 2500 manufactured in 1990 were actually shipped to the FBI. See letter from S&W.
In 1992 they shipped all 2500 of them shipped back to S&W. The party line is they were destroyed by the FBI but many agents bought them back as personal or duty weapons. I have a factory letter from S&W that documents that this was one of those originally sent to Quantico. It came with the holster, mag holder, and S&W factory. As a collector this is a big score for me. Now I am looking for one of those 1006 that starts with a TENxxx prefix!
My other 10's are Delta Elite, 1006 and 1086. No Glock yet as they can be purchased anytime.
MY grail gun is of course a BrenTen...but    $$$

10MMs
SW 1086,
SW 1076 (Returned to FBI after turned up stolen 10 years ago) Bg Bummer
Colt Delta Elite

Well my 1st post has my new to me 1086 to showcase. Someday when I grow up I can be like the Shadow too!
No seriously I just got this last week I am hooked. It's the only DAO I own. Next up is a 1006 or a 1026.