Recently purchased an older Clark Long Slide. It has a Bo-Mar rear sight with a piece on the front of it that pushes down on the barrel when it returns to battery. My question is how do you adjust this?
Are you talking about that Swenson designed metal piece that is welded to the inside of the slide that sits against the barrel hood?
I'll try to get a picture if I can figure out how to do that. The best I can do is direct you to GunBroker.com and type in 89793426. This will give you a picture of the weapon. Again, the piece is on the front of the rear sight base and it is adjusted up and down to apply pressure to the rear of the barrel. I don't think they are available anymore. Clark has gone to the full length barrel rib on their Long Slide.
There is a picture from Gunbroker but doesn't show us what we want to see. And why would anyone want to adjust the barrel down? I mean gunsmiths strive to obtain as high a barrel position as possible to have a good locking between the slide and the barrel.
Confused!
I would hope that Clark adjusted it when they put it on and not monkey with it.
Failing that, I would set it just in firm contact with the barrel so as to give uniform contact but not reduce the locking engagement.
Or call Clark and ask for instructions, Bomar being out of business.
That adjustable piece is the famous "Accuracy Tuner" in use for a while. Its only function is to make the barrel stop its upward motion in the same place for each feeding cycle. IMHO, it was a labor-saving device, making barrel fitting quicker, and it does work. But if you haven't messed with it, and the barrel locks up solid with the slide in battery... don't mess with it!
Yeah, you guys are correct. I called Clark today and spoke with Renee. She refered to it as a "tuner" and said it is set at the factory and don't mess with it. I don't know if it was a pipe dream but the gun locks up very tight. I haven't seen this before. My first Clark Long Slide didn't have one on it that I remember, but was built by Jim Sr. Maybe he didn't need to use them. They're computer records didn't go back far enough for this one to tell me who built it. Thanks for all the info.
Some of the Clark guns have the full length rib on them and some don't, having just sights. There are also some with short ribs with only a sight on the front.
Nice gun, enjoy it! It's a piece of 1911 history in many ways.
Thanks Joni, it really is a nice piece. Waiting for the weather to break to begin working a load.