Of course the gun market is down. Tons of spending power vaporized in the past year.
About the Model 21's. I checked on Gunbroker and saw many Model 21 listings and not a single bid.
Seller's need to be realistic. Other than the hope of appreciation, what makes a Model 21 worth more than $2,000?
On the other hand, there is a brisk market for quality guns under $1,000. I picked up a stunning Iver Johnson Special Trap and a gorgeous pre-war Ithaca 37T.
I am in the market for great guns between $500 and $1,000 but I see no reason to spend more than that on anything right now.
Ad to that the potential ban on lead shot in trap guns and there is every reason for the market to be down.
