You mean the access door , not the tanks itself. Tanks are the same. The lock was optional. Most are going to have the twist knob.
Keep an eye open. I’m cleaning out storage. Have lots of 70’s parts including 74 Sport Mags and a lot of new old stock small items.
yes access door, sorry about that, not a fan of the knob since it sticks out so far, but then again the lock was a joke, anything that could fit in there would open it, almost like it only had 1 barrel, so much for keeping people out.
and will do! where can i find your parts for sale exactly? i went to the 4x140 forum, and its a mess, perhaps i wasn't in the right place...