there is crossman
Please give more information. What is a "Crossman air pop." Are you referring to a Crosman air rifle? If so please give the model number or some more information on your Air Pop..
Which model are you asking about. They are all different.
Model 454 Mfg 1972-82. Crosman no longer repairs this model but you can search the web under "Air Gun repair" and find a location near you to repair it. However remember that this gun in PERFECT condition is only worth about $50 at best.
the best brand of air soft guns are...crossman,remington,smith & weson,and echo 1.
Contact Crossman or one of their repair centers.
I would start by checking the web under "Air Gun Repair" or see the link below.
It all depends on the model. Some use a clip. Some are loaded through the back of the barrel when it is broken open, others load through the breech.
The model 200 was introduced in 1928 and was a .175 caliber BB muzzle loader.
It depends on the model, but it usually is on the barrel somewhere or the breech below where you load the pellet or BB.
I can not find any information of a Daisy model 653. However Daisy did make a model 693 BB pistol. Is this the pistol you are referring to?
This pistol was made between 1978 and 1984. Crosman no longer supplies parts for this model, But the offer a free service to locate shops that repair older Crosman air guns. See the link below