Hi guys, I'm New to the forum and have a question about the sig p228 value. I got a S&W M&P 9 core up for trade with a Burris fast fire 3 and I got an offer . It's a 1991 P228 w.germany is in good shape but No box, manual, or test target. I'm asking $700 for the CORE. What you guys think? Thanks in advance.