See the link below for the Owners Manual for the Crosman 1077 air rifle
You can still order 1077 parts from Crosman in New York. See the parts and owners manuals link below. Then contact Crosman Customer service and order your parts.
Crosman does. see the link below for the parts list and how to contact Crosman.
As far as I know Crosman has made a 1077 rifle and a 1377 pistol, but never a 1177 model that I know of. However Crosman offers a service to locate repair shops that repair older air rifles. See the link below.
Crosman no longer has parts for this rifle. However there are independent shops that repair older Crosman air guns. Crosman offers a free service to locate these shops. see the link below.
CROSMAN 2100 You can find CROSMAN Parts and manuals at ( see the link below) This should give you a diagram on how to dissamble a crosman 2100.
Crosman owns both the Benjamin and Sheridan line of air guns. See the link below for the Marauder parts list and the customer contact page for Crosman ( They sell parts for the PCP rifle.)
It's a model of a COLT 357. Just like the Crosman 1077 is a copy of a Ruger 1022. Several of Crosman's air guns are modeled after real firearms.
Walmart or Canadian Tire
The Crosman web page provides owners manuals and schematics for most all their rifles on their home page. Click on the link below and go to "Download an owners manual."
See the Crosman link below.
In 1977 The Benjamin Rifle company purchased Sheridan air gun company. In 1992 Crosman purchased Benjamin. So now Crosman owns both Benjamin and Sheridan.