As howdy said, this is a mini-sized body.
The way to tell is to look at the front of the gun where the vertical ASA attaches.
A full-sized autococker body will have about an inch of metal extending below the barrel before the frontblock, under which the vertical ASA attaches.
On a minicocker, that material is lopped off, so the frontblock begins immediately under the barrel and the vertical ASA (if it has one) is connected directly into, if not built into the frontblock itself.
This particular minicocker body is from before 1998, as evidenced by the squarish edges along the bottom of the body. The ramped sight rail, fake pump arm slot, and bolt tube gills/windows are all custom milling features typical of airsmiths in the mid '90s.