Need help from the AR gurus.

**jdlv4_0** · April 26th, 2007, 06:22 PM

To my dismay, the rear sight aperature on my Bushmaster is wabbling and it appears that a pin has fallen out? There's the little hole in the front of the rear sight (see pic with red circle) and it looks like there should be a pin holding the rear sight steady? If so what would the name of this pin be? This diagram doesn't really help me much. Any info would be greatly appreciated.

The elevation and windage knobs are functional, it's just that the whole rear sight "wiggles".

***edited to add, with the rear sight at max elevation, the wobble goes away.

.

**edited again.

I know that it's usually cocked a little toward the left because of the spring and ball, but for the life of me I can't remember if the wabble is normal or not. There's about 1/16th" to 1/8" of play in the rear sight.

**GRoPA** · April 26th, 2007, 06:49 PM

You need to post this question on AR15.com they'll be able to tell ya pretty quick.

**jdlv4_0** · April 26th, 2007, 06:54 PM

Originally Posted by GUNRUNNERS OF PA

You need to post this question on AR15.com they'll be able to tell ya pretty quick.

Just signed up before posting the inital post, waiting for everything to get activated, in the mean time...

**Holleta** · April 26th, 2007, 07:08 PM

Your best bet would be to call Bushmaster. The only problems I ever had with ARs have always been with one of my Bushmasters but.....they stand behind their products like nobodies business.

For me, it was always no questions asked, no receipts needed, no serial number required to prove anything. Just good service and parts shipped or gun part sent in and replaced or fixed.

**jdlv4_0** · April 26th, 2007, 07:14 PM

After further research, I don't think there's a pin missing. I think I may just have a worn out spring in the rear sight housing behind the ball. The level of wabble increases / decreases, depending on the elevation setting.

**Pittsburgh Tactical** · April 26th, 2007, 09:31 PM

3 things:
Is your Bushmaster an A2 or A3?

Did you buy it new or used?

Waht Did Bushmaster tell you about the issue?

I thought when I bought mine (A3) about 5 or 6 years ago I heard something about a problem with the rear sights. It may not be the same thing though

**jdlv4_0** · April 26th, 2007, 09:48 PM

Originally Posted by Pittsburgh Tactical

3 things:
Is your Bushmaster an A2 or A3?

Did you buy it new or used?

Waht Did Bushmaster tell you about the issue?

I thought when I bought mine (A3) about 5 or 6 years ago I heard something about a problem with the rear sights. It may not be the same thing though

A2, if it was an A3 I'd just buy a new carry handle and be done with it.

I bought it new about 4 years ago, e-mailed Bushmaster this evening and am waiting for a response.

**Pittsburgh Tactical** · April 26th, 2007, 09:53 PM

Originally Posted by jdlv4_0

A2, if it was an A3 I'd just buy a new carry handle and be done with it.

I bought it new about 4 years ago, e-mailed Bushmaster this evening and am waiting for a response.

From what I remember, if you call them they can take care of you over the phone. By either sending you the part you need or having you send it in for service.

The reason I asked about A2 or A3 is beacuse they would likely just send you a new carryhandle if you return the other.

**jdlv4_0** · April 26th, 2007, 10:04 PM

Originally Posted by Pittsburgh Tactical

From what I remember, if you call them they can take care of you over the phone. By either sending you the part you need or having you send it in for service.

The reason I asked about A2 or A3 is beacuse they would likely just send you a new carryhandle if you return the other.

Well that's good to hear, had I gotten to messing around with it before 6pm I would have called them.

**BUCKMARK** · April 26th, 2007, 10:56 PM

Rear sight retaining pin.
-OR-
Rear sight base spring pin.

Same thing. They never show them in the diagram and I don't know why. They are like $2.00 and the flat spring or "rear sight base spring" is about $1.00