Question about scope mounting

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spartan1980

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take a look at the two pics here. when I look through my scope, I can see the front sight through it. thus when you zoom in it really obscures your view.
gun is a Colt flat top 20"

what have I done wrong here?

also, on the Colts to detach the upper receiver from the lower the pin at the front has to be unscrewed (not just poked out like the rear one). my question is do you have to completely remove the screw or just loosen it and then pull on the pin? my pin is sticking and I cant pull it out. not sure if screw had to be completely removed or not.

I just got the gun so all a little new to me!





COLT003.jpg


COLT002.jpg
 
while Im at it, I would like to add a handguard rail handle. my question is do I have to first replace the whole handguard or can I attach the piece (pic included) to the handguard and then just add the grip to it?


will this piece connect to a standard Colt handrail? if yes, how do I attach it? (a guy gave me this piece, but no screws or anything with it)

handrail002.jpg
 
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First, congrats!

Second, you didn't do anything wrong, I too have a fixed front post that I see in my scope (TA31F). As the TA31F is a 4x, I hardly notice the post. Don't worry about it.

Third, don't know if you can attach the rail directly on the handguards you have. An option would be to get a free float railed handguard. (what I did on my 2 ARs..)
 
Your scope is sitting quite low for an AR, do you find it comfortable to look through? The front post shouldn't be an issue, when you focus on your target the post should virtually dissapear.

As for the rail, try lining up the two slots with the holes in the handguards, should fit without any issues. The screws you'll obviously have to supply yourself. I'd recommend T-nuts for inside the handguard, but a regular nut will do. You may have to put holes in your heat shield depending on where you want to mount your rail.

And yes, you must completely remove the screw from the pivot pin in order to seperate the upper from the lower.
 
From your photo, your front pivot pin is not a screw, it's a push pin like the rear takedown pin. Comes off the same way as the rear. If it's a bit tight, that's OK, use a punch or equivalent to push it.

Now, if you're talking about the two part pivot pin/screw, as I'm sure that's what Leg is referring to found on some Colt models, then yes, it needs to be unscrewed from one another, and the second part of the screw pushed out to detach the upper completely.
 
It's a two piece screw, he even said so himself. When Colt first transitioned from large hole to small hole uppers for civilian rifles they continued to use a scaled down version of the two piece screw, current Colts have regular military style captive pivot pins.
 
I understand now. He's talking about a large hole screw on a different gun than he show in his photo above. My mistake. :)
 
No he's not, he's talking about the rifle in the photos. It's a small hole that uses a two piece screw.

That upper hasn't been drilled to accept the spring and pin that would be required to capture a regular pivot pin. In other words, if a regular pivot pin were used it could eventually work its way out while you were using the rifle and it would fall out whenever you seperated the upper from the lower.
 
easy said:
I understand now. He's talking about a large hole screw on a different gun than he show in his photo above. My mistake. :)
Click to expand...

thanks for your help guys. the screw is actually just on the other side of the gun from the one in the pic. and yes, I figured it out - you do have to take it right out then the pin itself was tight, took a little time, but fine.
 
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