The value of a Ruger P91 DC in .40 caliber can vary based on factors such as its condition, age, and local market demand. Generally, prices for this model range from $300 to $600. Collectible or rare variants may fetch higher prices, while heavily used models may be on the lower end of the spectrum. For the most accurate valuation, it's best to check recent sales or listings in your area.
Ruger's website has sn data you can look up.
50-200 or so
$300-$375, depending on condition.
40% of 91= 40% * 91= 0.4 * 91= 36.4
300
91 over 40 = 91 divided by 40 = 2.275
It would depend on the guns condition as well as caliber being .45 ACP, or .45 Auto Rim.
Don't know value, but made in 1918. 91 years ago. 1918-Made by Colt
100-350 or so
The Russian 91-91 in caliber 9x39 uses a 20 round box magazine,
91 is a unit and has a value of 91 if you just leave it as a number
Model 91 is a model number for handcuffs. If you mean a Single Shot Model of 1891, the single shot pistol, 100-2000 depending on EXACTLY what you have and condition.