Help Identifying some parts on a 5.6 SA M1 Grand

[USMCNewdog]

Folks,

I recently bought SA s/n 5.6, and decided to break it down and identify some of the parts using a Collecting M1 grands book by JC Harrison.

Anyhow there were a few parts I couldnt quite get, including the marks on the barrel.

The rear site cover, can you identify it without tearing down the back sight? I thought it looked like a Type 4 HRA??

http://i84.photobucket.com/albums/k3...d/SA565013.jpg

The follower arm with no markings, I dont get the double, single bevel?

http://i84.photobucket.com/albums/k3...d/SA565012.jpg

The gas cylinder lock screw with two sets of P and o?? didnt find an explanation for this, I know it is a Type E, version 4 or 5, post war conversion, from SA sub contractor, post war conversion for use of grenade launcher, P is SA mark other is subcontractor

http://i84.photobucket.com/albums/k3...d/SA565008.jpg


I have a few more questions too which I can add pictures if need be. One is the rear windage knob, labelled DRC? and the elevation which has WCE on the knob?

Any help would be great! I bought this mainly for the stock which has the rifle grenade sight mount on the site, its too cool! lol
Thanks in advance, Mike

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[GregM]

Can't help you with the sight cover. The follower arm, well you are looking at it from the wrong angle. Turn it facing you. The bevel is where the pin goes thru it, not from the side. Best way is to just show you a pic of a beveled one. A non beveled arm should be correct for your rifle. DRC is Druge Borthers manufacturing company, a common postwar windage knob. WCE is Wico Electric Company, another common post-war supplier.

Greg

[USMCNewdog]

Greg, Thanks for the info on the knobs, and I will have to get the follower arm back out to have a look at it. I didnt have a clue as you can see )

[dryheat]

Here ae a few of the followers, there are about six different types. You can pick oout the single bevel and the doouble bevel..
http://img.photobucket.com/albums/v6...llowerarms.jpg

[USMCNewdog]

I see now, thanks. I was way off of what I thought they meant by the bevel!