Crosman offers a service to locate air gun repair shops that service older Crosman air guns. See the link below.
The model 400 was made between 1957 and 64. Crosman no longer has parts for them. However on their web page they have a repair locater that will give you a list of locations that still repair old air rifles and guns. Go to the crosman home page and click on "find a service center." See the link below. BTW: the model 400 is a pellet rifle not a pellet gun.
Crosman no longer repairs or has parts for this pistol, but they do offer a service that will help you locate someone who does repair older pistols and rifles. See the link below. ( Find a service center.)
See the link below for the parts list and phone number for Crosman.
It all depends on how old the Crosman air gun/rifle is. Some parts are available from Crosman and some are available through other resources. Crosman offers a service to find repair dealers who repair older airguns if they do not have the parts currently. see the link below. Crosman also has parts manuals and owners manual online. See the link below.
It would help if you stated the model of the pellet gun you need parts for. I can tell you this much. Both Daisy and Crosman made pellet guns for Sears under the JC Higgins brand name. If you want to try to locate a repair shop that restores old pellet guns I suggest to look on the web under "Air Gun Repair." and locate someone who repairs older pellet guns. Or you can re-post your question with the model number it will start with one of two sets of numbers like 799 or 126. This will identify it as either a Daisy or a Crosman air gun. Crosman offers a locater service to repair older guns. (If yours is a Crosman.) It's up to you how you want to find parts.
You can search the web and look for "Airgun Repair" and locate someone near you and have it repaired. The Model M180 was made by Crosman and is a Crosman model 180. it was made between 1962-68. Crosman offers a service to locate repair shops that repair older Crosman Airguns. See link Below
Crosman offers a service to locate repair shops that repair older air rifles and air guns. See the link below.
You have two choices. Attempt it yourself "see the link below for the parts manual" or use Crosman service to locate a repair shop that repairs old air guns. (see the link #2 below)
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.
It depends on the model. Today Crosman air gun company owns Benjamin air guns. Crosman offers a free service to locate shops that repair Benjamin, Sheridan and Crosman air gun. See the link below. Or you can find parts online (See the next link below) Or do a search for "air gun repair" on the web.
Crosman still has some parts available for this model. See the link below.
Crosman and Daisy made airguns for Sears under the JC Higgins name. This model is really a Crosman model 180. Crosman offers a service to locate repair parts and people who repair older models that are out of service. See the link below and click on "find a service center" at the bottom of the Crosman web page when it opens up.