You follow the link below to the Crosman website Customer Service section, download the manual for the 140, and read it.
I have absolutely no information on a Crosman model 143. Are you sure it isn't a model 140 or model 147. I even searched the net and can not find anything on a model 143.
If you want a estimate of value you will have to give more information, like the condition of the rifle Excellent to Poor, is it still working or does it leak air. What caliber is it? .177 or .22. Without more information it is not possible to answer you.
Go to ( See the link below ) and find your parts and owners manual for your gun or rifle. Crosman keeps a web page for older airguns.
This air gun was made by Crosman for Sears under the JC Higgins brand name. In reality it is a Crosman model 140. Crosman offers a free service to locate shops that repair older Crosman, Benjamin and Sheridan air guns. See the link below, or you can search the web for "Airgun Repair" and find a shop near you to repair it. As a last resort see the #2 link below for various shops.
This model was made for Sears using the JC Higgins brand name. It was made by Crosman and is really a Crosman model 140 or 1400. Crosman offers a service to locate repair centers that repair older Crosman air guns. See the links below.
The 1400 like its predecessor 140 are both .22 caliber pellet rifles. The 1400 was made from 1968 to 1978. If you want the owners manual it is still available from Crosman as a download. ( see link below ) on the Crosman web page click on "Download a Manual" and locate your owners manual. You can purchase pellets at any large sporting-goods stores like Big 5, Walmart, Cabelas, Basspro or Dick's.Remember don't pump the rifle more than 10 times or it will damage the seals.
I'm going to try to answer this in two parts. 1. Montgomery Wards Pellet rifles and guns were made by Crosman corp under the Hawthorne name. 2. This is pure speculation and a best guess. I believe the m140 is the "Crosman model 140" it is a pump, single shot, 22 cal pellet rifle. It had a wooden stock with the forearm as the pump handle. there were 3 variations made, starting in 1954 ending in 1968.
I believe you are talking about a Crosman model 140 or 1400 first made in 1954 and then again in 1955-57, 1956-62, 1961-68. These were all Variations of the same model. For Years Crosman and Daisy made airguns under the J.C. Higgins name for Sears. All Crosman models for sears began with (126) and Daisy models began with (799) See the following web pages to verify this air Rifle. See the links below.
Made by Crosman for Sears. I have no additional information. ----------------------------------------------------------------------------- It's a Crosman model 140 or 1400 made for Sears using the JC Higgins name. It was made between 1954 to 68 in 4 different variations.
the Crosman 140's were made in four different variations starting in 1954 and ending in 1968. The 140 became the later version called the 1400 made between 1968-78
The rifle will fire without a pellet, but over time it will ruin the air chamber and air piston inside the chamber. When you pull the trigger the air piston slides forward inside the air chamber compressing the air behind the pellet. At the last moment it actually slows down as the pressure builds and fires the pellet. Without a pellet in the loading port the piston has no resistance and just slams against the stop. This will eventually ruin the rifle.
see the following link for the owners manual.http://www.crosman.com/pdf/manuals/crosman/140/C140-OM.pdfsee the following link for the owners manual.http://www.crosman.com/pdf/manuals/crosman/140/C140-OM.pdf