Like all things it depends if you are selling or buying! A mustang .380 in good shape with a couple of mags, the plastic box it originally came in and the colt paperwork will bring from $500 to $700. The better the shape or the gun and unfired would bring the $700. Just the gun in fireable condition with one mag is about $500 (unless damaged or really scared up). There are about three different models and one the Government is a little larger than the other two. Hope this helps.
100-500 USD
You will have to call Colt to find out
50-400 usd
Sorry I don't know the exact year, I only know that the mustang plus II made it's debut in 1988.
Call Colt with the sn and they will tell you.
Published serial number data for Colt stops before yours was made. You will need to call Colt to find out. Tel: 1-800-962-COLT
made by Colt in 1918. not unusual to see a springfield slide on a Colt frame. value depends on overall condition. estimate $1500 plus or minus.
I would pay $1000 plus for a Model 70 in mint condition.
made by Colt 1912 for US Navy. your Colt has a springfield slide, which is not unusual. value depends on overall condition. estimate $1500 plus or minus
It's value depends on it's overall condition. Furthermore, the value of any item, to the seller, may vary widely from the value to the buyer. Plus, dollars and pounds increase and decrease in value daily. Please be more specific as to what market you are in.
depending on condition $1000 plus or minus
From what I read, the Colt diamondback is made of steel and should be able to take plus P ammo. To be on the safe side, check with a gun dealer.