This video demonstrates how the breech is removed from an early Airgun Designs Automag, likely a Level 5 model as far as I can tell.
I did assemble this Automag from various so if anyone recognizes pieces that are not level 5 please let me know so I can correctly edit the titles to make a note of that.
In this video, the Mag is mostly complete except for the valve. The body and other parts are as best I can tell all original. I don’t have any early valves with me in southern California to place in this body.
I received the parts for this early automag recently in a lot of prototype/early automag items that came from the shop of Dr. Desmo (www.drdesmo.com) a machine shop in Illinois that produces Ducati motorcycle parts and in the past produced runs of AGD parts.
William Kapes, who worked at Carter Machine in the late 80s to early 90s and Unique Sporting Goods after that, explained that the early automag breeches use cut in half regulator seals as the detents.
I’m not sure which dimension is preventing a complete lvl 7 (or level 10 automag) valve from sliding into the body but the later valves will not fit. I believe it’s the added length of the valve with the powertube screwed in or welded to the front.
Edit: Here is a list on AO that Tom Kaye made pointing out the differences between the different Automag models (pre lvl 7):