At Numrich gun parts : it is the same as a Squires Bingham 1600
A rifle.
A gunsmith can assist you.
remove the lage pin from the rciever and rock the tigger pack up and towads the muzzle of the gun and it should lver right out, from there it is pre self explanaory
Ebay
No
No
September 1980
about $200 new $150 typical
it looks exactly like a vietnam era m16 in .22 caliber
Try e-gunparts.com
Made in the Philippines