Well...I'm going to buck the trend. My rule is never...EVER...sell a gun. I have guns i haven't fired in years. They don't cost me a dime.
In the past, I have sold a few firearms. With rare exceptions, I eventually regretted it.
Sold a Universal M1 Carbine. It was a post war commercial copy partly made from left over USGI parts. No historical value. Sold it. Missed out on the CMP Carbines, now can't afford a wartime carbine. So I'm pretty much screwed. Kick myself every day.
Sold a perfect Ruger Secuirty Six 4" stainless revolver. Loved that gun. But I was competing in the Air force with an M9, so I bought a Taurus PT99 as my practice gun and sold the Ruger. Took many years, but now I kick myself ever day.
Sold a Winchester 94AE 30-30. My dad bought it for me when I turned 18. Realized I was never ever going to be a hunter. Sold it. The followig year I moved to Alaska. Guess who goes hunting every year now? Kick myself every day.
Sold that Taurus PT99. When I left the Air Force. Decided I didn't want anymore to do with training for killing people. 10 years later, and now I'm looking for a Beretta 92. Kick myself every day.
Sold a beat to crap S&W Model 10. I had just got an awesome Ruger Security. Now I'm looking for a Model 10 to pair with my M1 Garand. Kick myself every day.
OH THE M1 GARAND! How could I forget. Sold my WWII production Springfield Armory M1 Garand. I had been shooting Service Rifle with it. (And doing very poorly.) Decided I liked High Power better with my bolt gun. 15 years later, I was kicking myself for selling it. Luckily, I sold it to a good friend (who owned it all 15 years and never once fired it.) She sold it back to me for what she paid me for it. What a blessing. (And yet, I ALMOST sold it a second time. When will I ever learn!?)
What else? Oh yeah! S&W 22LR pistol. Sold it thinking I was done shooting handguns. Oops.
Ruger MK II. Same as above.
You see a pattern here?
NEVER.....EVER....SELLL.....A GUN. You will eventually regret it. Not this year or the next. But one day, some day...a long time from now, you wil regret it.
PS: Sorry for the long post.