The model 336 is the regular rifle,the model 336C was the carbine version,and the 336CS was the carbine sporter edition.
the cs on a marlin model 336 stands for carbine standard.
The CS is just another abbrev. used by marlin during the long production on the model 336.The CS was used by marlin on the model 336 during 1984-2000.The CS usually referred to Carbine standard.
I believe it means Covered Sights. My 336 doesn't have a covered front site blade, and my 336CS does. CS does not mean "covered sights". It is the designation for a Marlin C-"Carbine" with S-"Safety" which means it's a carbine with the latest crossbolt safey.
I believe you have a Marlin 35 Cal. Model 336 CS rather than a C5. Look again.
these marlins are selling for between 250-350 dollars depending on condition.
the guide I use says $180 to $400 depending on condition. Best bet is to go to a sight like Gunbroker and see what they're selling for and in what condition.
Your Marlin was made in the year 1995.
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Most serial numbers on lever action guns are founr under the lever. I would check there. On all firearms manufactured in the US after 1968, a unique (for the model) identifying serial number must be on the receiver. You will not find a serial number on the barrel. Marlin serializes Model 336 rifles on the upper tang behind the hammer. Early Marlin rifles were serialized on the lower tang behind the trigger before 1968, but since that is a removable part it would not satisfy federal requirements under the Gun Control Act of 1968.
precisely one digit.... and also difference of 50 between model #s
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