Hey Thanks for the reply to my other post. The one for sale here and on SubGuns was $20,500 but included another sear host(Vector V53) and a TON of accessories and had a sear registered in all 3 calibers. That being said if you subtracted the value of all items except the MP5SD(without sear),it would be a great deal. Hard to imagine the person selling off just the MP5SD alone,but it would not hurt to ask. If you thought the sear alone was worth say $17000,and the other gun and accessories were worth nothing,$3500 would be a steal for a MP5SD.