THE MARKSMAN MODEL 740 air rifle was introduce in1970. It was discontinue in 1977.
The marksman model 740 is rated at 425 fps.
Contact the maker for a replacement manual
It will use any .177 caliber pellet
I own a Marksman Model 740 .177 pellet rifle. It has a wood-patterned plastic stock. It is a single shot rifle that folds in the middle for cocking. The safety auto-enables after every trigger pull. You must cock and reset the safety. Hope that helps.
There is a Model 740 - plastic stock, cocks by breaking the barrel handle and pressing down. Takes standard BBs which are loaded in mass through an opening in the top-back of the receiver.
The Marksman was made from the mid 70' to sometime in the 80's. Answers has no way of displaying photographs but I did a web search on "Markaman 740 air gun" and found several images of the rifle. It should not be hard to find them. It's a breal barrel rifle.
Impossible to answer without the sn or date codes.
the 740 is a very old model, they sell for $250- $350 in this area
Probably 740
The Marksman Model 740 .177 pellet rifle. It has a wood-patterned plastic stock. It is a single shot rifle that folds in the middle for cocking and loading. The safety auto-enables after every trigger pull. You must cock and reset the safety
It was intraduced in 1978. Read more at http://www.edmunds.com/bmw/7series/review.html
The Western Field model 740 was made for Montgomery Wards(western field) by Marlin.The marlin model 336 and your rifle are one and the same.The serial number letter prefix of AB indicate that your rifle was made in the year 1966.Being that this rifle is a Marlin model 336 you may find a stock all most anywhere.You can try E-bay,gunbroker.com,or go to Numrich Gun Parts Corp.All of these sights should have what you need.As to the value,these well made lever action rifles will bring between 200-300 dollars in the condition that you describe.