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Posted: 6/10/2001 5:00:10 PM EDT
[#1]
Your sight is perfectly normal. All A2 sights do this to some degree or another. As for the bolt thing...could be the bolt is having trouble stripping rounds from the magazine. Make sure the feed lips aren't bent in too far.
Bradd |
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Posted: 6/10/2001 5:04:22 PM EDT
[#2]
Sounds like sloppy tolerances on the rear sight cut out. I had a Colt A2 HBAR that had the same problem (from what I think you have described).
It should not -as long as it is tight- affect any thing. - If it realy bothers you - it can be corrected one of two way - build up metal on the sight or carry handle to make it level or get a shim of some sort. Either way you will have to ensure that you have it done precisely and uniformily. You could replace the sight assembly with another to see if it the assemble but I would be willing to bet on the carry handle housing. On to the hang ups - new gun I gather - the bolt and everything might need sometime to work it - look for any worn areas - My M4A1 did it for the first 1-200 rds. |
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Posted: 6/10/2001 5:06:18 PM EDT
[#3]
Actually the bolt will stay in the open position for a good full second or so before moving forward towards the new round. It also kept closing on an empty mag (not holding open) with both USGI mags ang orlites.
I am glad there is nothing wrong with the sight...even if it does look crappy. As for the crappy shooting, well it must have just been me today. |
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Posted: 6/10/2001 5:12:16 PM EDT
[#4]
I would probably take a hammer to it. That shoud fix both the sight being crooked and it will also help you close the bolt. Don't use one of those little wimpy nail pulling hammers either, use one of the big round headed hammers that looks like a keg on a stick. Also, gentleness is for wimps so when you go to whack it take some serious cuts. Then you can use black fingernail polish to fix up any marring or scratches that may occur during the repair.
Post a pic when you get it all fixed! Michael |
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Posted: 6/10/2001 5:15:59 PM EDT
[#5]
Sounds good mike but would you mind if I try with yours first? I mean, just so I get it right and everything.[;)]
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Posted: 6/10/2001 5:22:45 PM EDT
[#6]
Quoted: Sounds good mike but would you mind if I try with yours first? I mean, just so I get it right and everything.[;)] Sorry, but Ive already did it to my original Colt factory M16. It turned out beautifully. The black fingernail polish really did the trick. Trust me, it is the only way to fix it correctly. Would I lie to you? Michael |
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Posted: 6/10/2001 5:23:41 PM EDT
[#7]
Quoted: ...best group was 3" at 50 yards! I just chalked it up to a crappy day and decided to come home. So, could this have caused bad grouping? More info needed: 3" at 50 yards? That's a "bad grouping"? 11.5/14.5" (REAL) barrel? You're kidding right? How good did this thing do before the [b]bad[/b] sights? Wana sell it? Just phukin with you, it doesn't sound like there's anything wrong with your gun. If you're getting 3" out of an unfamiliar sight/rifle combo, it'll tighten up more. Like GarryOwen says "Use it - use it hard!". [i]Just not so much coffee next time.[/i] |
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Posted: 6/10/2001 5:33:42 PM EDT
[#8]
if your mags are good and you are using factory ball ammo you have a gas system problem. clean
your gun take bolt apart and check rings apply breakfree clp and shoot.if this does not help find a local armoror/gunsmith |
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Posted: 6/10/2001 5:38:28 PM EDT
[#9]
Quoted: if your mags are good and you are using factory ball ammo you have a gas system problem. clean your gun take bolt apart and check rings apply breakfree clp and shoot.if this does not help find a local armoror/gunsmith I dont really see how this could be a gas problem. If I understand the post correctly the bolt is getting stuck in the retracted position. If this is the case then the gas system is doing its job perfectly to get the bolt in that position in the first place. Personally I think that you need to lube it more. I have had a similar thing happen when I pulled a gun out of the safe and took it to the range without checking it out first. It was doing almost the same thing until I dumped a bunch of CLP on the bolt and carrier and then it worked perfectly. Any yes the bolt was closing when it wasn't supposed to as well. Just try it, but only after you try the hammer thing of course. Michael |
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Posted: 6/10/2001 5:42:16 PM EDT
[#10]
DID you clean it before you fired it? Was there white grease in it?
Strip the bolt - check you buffer as well it could be hanging up in there. |
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Posted: 6/10/2001 5:57:46 PM EDT
[#11]
ponyboy
one symptom described was failure of the bolt to stay back after the last shot. shortcycle? my limited experience with m1,m1a,ar15 would look where i said.and the bolt being part of the gas system must not bind in the stock tube |
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Posted: 6/10/2001 7:07:13 PM EDT
[#12]
Irish: "one symptom described was failure of the bolt to stay back after the last shot. shortcycle?"
I know what you mean Irish (& I know it sounds like the carrier is hanging up), but I doubt it. There's really not that much it can be, but if the problem is real -- the buffer is rubbing the tube near the back end. The buffer tube could be OC, or it could be dented -- either one would explain the hang-up, AND what [u]seems[/u] like short stroking at first. mtnpatriot, take that buffer out, & peek in there -- see any rub marks on one side? If not, do you know how to remove the stock to examine the outside of the tube? If this is a new gun, clean out the tube (it's probably dry though), & slop a little CLP in there, from your describtion it sounds like it'll wear in just fine. |
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Posted: 6/11/2001 5:34:56 AM EDT
[#13]
Quoted: Oh I almost forgot. What would cause the bolt to hang up for a second or so before returning forward to cycle a new round into the chamber? This was happening all day and was frustrating as hell! Any thoughts on this would be great as well. steve This can happen with a full mag and lack of lube. Try relubing the gun. |
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Posted: 6/11/2001 6:28:17 AM EDT
[#14]
Thanks for all the advice. When I get home tonight, I'll take a look at the buffertube and if everything looks allright I'll give it a shot of CLP. I can't take the stock "off" becaause it is a CAV-15 (stock molded into lower). I'm going to take it out again this week and next week and put some more rounds through it. If I still have problems after that I'll post again.
steve |
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Posted: 6/11/2001 8:24:48 AM EDT
[#15]
mtnpatriot....you got mail...
As far as the group and rear sight...sorry can't help you, but as far as the CAV-15: When I designed the CAV-15 receiver, I was young and naïve (now I’m old and jaded), I made it to the high end of the tolerances figuring it would be a nice fit on any of the uppers out there. What I didn’t take into account was that the uppers out there hit all over as far as “Spec”…Usually Bushmaster, Colt & Armalite are pretty good (some or the other aren’t so good), so I will have troubles from time to time of an upper putting the bolt carrier too high in the buffer tube. Before the CAV-15 are shipped they are cycled with 2 different uppers (usually a Rock River and either TopCrust’s Bushy or one of my ASA’s). If they hesitate at all they are “Punched Out” to open the ID up a few thousandths of an inch and that fixes it. The last round hold open is a super easy fix. The bottom of the hole is actually formed by the other side of the receiver. The trouble is that when I sonic weld the 2 halves together, there is some “over weld” that gets spit in the bottom of the hole. The fix is to either clean it out with an end mill or to cut 1 to 1.5 of a coil off the detent spring. This takes some pressure off of it. The spring is pushing up too hard, so the bolt hold open over powers the mag spring and don’t hold the bolt open. If you have a CAV-15 with this happening, please give me a call or drop me a e-mail. This is a warrantee issue and you can send it back to me without going threw and FFL and I can send it back to you directly. |
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Posted: 6/11/2001 9:13:44 AM EDT
[#16]
mtnpatriot.....
The crooked site annoyed the hell out of me. This is what I did. When you take the site apart, you notice the little detent spring and ball in the vertical face of of the site.This is what makes the site sit crooked........it pushes(rotates) the site and if you have a big gap with the vertical face of the handle it will always be crooked. I took another detent spring and ball and drilled a matching hole on the other side of the site with a drill press. Go slow. Depth is critical. Better to be shallow than too deep. Now you will have equal pressure on both sides of the site and it will sit correctly. It worked for me. I hate crooked. |
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Posted: 6/11/2001 10:19:31 AM EDT
[#17]
Doesnt the little ball and spring that pushes the rear-sight assembly away from the carry handle on one side serve some purpose?
Kharn |
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Posted: 6/11/2001 11:07:55 AM EDT
[#18]
as far as I can tell its just to keep the site from wobbling.
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