Al's gunshop 1911 wadgun??

Hello everyone,
 I bought a colt early 70's series 1911 that was gunsmithed into a great wadgun. Full bomar rib, pre-stippling on front straps and a small hole in the main spring housing where with an allen wrench I belive one can adjust the trigger pull.  The slide has the name Al's gunshop.
Does anyone have info about this gun??
Thanks

Dinan?

I thought Al Marvel was “Marvel Custom Guns”

chiz1180 wrote:I thought Al Marvel was “Marvel Custom Guns”

He is, but the only thing I could think of.

I thought Dinan went by Alton, not Al. Got a picture of it?

Alton was his name he used in publishing, but I think he would answer to Al. But…this being a series “70” gun, I’m not sure when Dinan quit gunsmithing. Certainly not far into the 1970s…

Update Al Dinan was killed in an automobile accident in 1977, he was 60.

I would also like to say the Al Dinan was likely the best source for 45 accuracy loading techniques. He preferred a ROLL crimp on his 45 ammo. And he preferred a softer alloy to cast his bullets.

and his front sights had 3 distinct holes thru them as I've heard.

james r chapman wrote:and his front sights had 3 distinct holes thru them as I've heard.

and Dinan stamped on the front of the barrel bushing

Google found Al Greco out of PA? Al's Customs. Been building 1911s since 1985? Fits the timeframe.

Dave