Thoughts on this...

[Bruce Day]

1. The one piece barrel lug with the tapered back end is necessary for use with beavertail forends. Otherwise, with a square back end lug, there is a tendency for the solder to loosen and the forend will come off during shooting, particularly when bearing the weight of the beavertail forend. Repros all had the one piece lug, whether beavertail or splinter forend. The pictured lug looks normal.

2. Repros and Ilion made Rem original Parkers have a moisture weep hole through the bottom rib adjacent the barrel lug. It was left unplugged. See TPS for photos.

3. Suggest you partially disassemble the forend mechanism by removing it from the wood. The latch parts should be apparent without further taking apart the ejectors . See that the latch parts move normally and that the ejector hammers seat normally . Suggest you thoroughly clean the mechanism with Rem Action Cleaner and then sparingly put drops of gun action grease on the moving parts.

4. I have seen suggestions here that carb cleaner is as good as Rem Action Cleaner. While I have not tested it, I was informed by Babe Del Grego that they do not recommend carb cleaner because of a tendency to migrate and carry gunk, and then to solidify, whereas Rem cleaner does not. As a result, I use gun specific formulated Rem Action Cleaner and it has worked well for me. I have also seen recommendations to oil the action parts. In my opinion, oiling the the double trigger parts and very sparingly oiling the single trigger parts when assembling is correct , but after that, light gun grease is superior to oil because oil migrates and grease stays. Excessive grease will collect crud, so keep it light. I always grease the locking bite where the bolt fits and the hinge surfaces, then wipe off the grease when cleaning after use.

Photos on request.

[Steve Kleist]

Walt/Ron,
I am NOT a gunsmith, stocksmith, nor Parker Repro expert....however I have had a few experiences that just might help you.
I own several Parker Repros and shoot them often. Years back I bought a 12 ga Parker Repro Magnum with screw in chokes for hunting and shooting skeet. It originally came with a splinter forend, which I do not like. I bought a rough cut inletted beavertail forend. This required considerable fitting on my part. I carefully adjusted the latch mechanism a little at a time until it fit. At first it did not fit because the latch could not correctly engage the barrel lug completely and it too came off when shooting. By trial and error I raised the forend latching mechanism with thin shims and/or sanded away any wood that was bearing on the barrels keeping the latching mechanism from engaging completely. REMEMBER I am NOT a gunsmith.
As a simple experiment you could put a piece of carbon paper between the forend and barrels and latch the forend on to see if the wood on the forend is keeping the latch from completely engaging. If this is the case, a little judicious sanding might solve the problem. (At this point I expect a little scolding from the forum and advice about resale value.)
This is not expert advice....remember I am NOT a gunsmith..just some guy with a camo cap who has had the same problems as you.
Good luck.
Steve Kleist Ely, MN

[Autumn Daze]

Not sure if your Repro is a single trigger gun or not but I have been told by Delgrego, Abe Chaber and Ken Waite(Miller Triggers) do not lubricate a single trigger at all.