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Loose handguard

Printed From: The Carbine Collector's Club
Category: The Club
Forum Name: Safety/ Accuracy/Shooting/Ammunition/Care and Maintenance
Forum Description: What to Check, Reloading, Tips for Accuracy, Competitive/Recreational Shooting
URL: http://www.uscarbinecal30.com/forum/forum_posts.asp?TID=5790
Printed Date: Apr 19 2024 at 2:38pm
Software Version: Web Wiz Forums 12.01 - http://www.webwizforums.com


Topic: Loose handguard
Posted By: Rebel92
Subject: Loose handguard
Date Posted: Oct 15 2021 at 3:09pm
so far I’ve been dealing with it, and even tried putting a greasy cleaning path between handguard and barrel, But it’s driving me nuts. I don’t believe that the GI’s just dealt with the possibility of the handguard flying off after shooting several dozen rounds. What remedy is there to this? Would a shim work? If so, where would you shim it? I know it’s supposed to be “loose” so I’ve heard and read, but I can’t believe they didn’t have a way to remedy this. 



Replies:
Posted By: floydthecat
Date Posted: Oct 15 2021 at 3:55pm
The fitment of the guard could have a lot to do with the fit of the barrel band. They don’t have to be lose and I won’t tolerate anything lose. Does it seem to be too short? The tab on the rear can be tweaked a bit if it helps? Is the band fitting snugly on the nose of the guard? Is the band spring solidly “clicking” into the band notch or is it out of position. 

All USGI guards are suppose to be the same, but some will fit a carbine different than others.

You can slightly deform the lip on the rear of the band a bit to grab the guard nose.

There could be several things amiss….just have to find out. The guard itself might be too short. Is the guard marked?


Posted By: Rebel92
Date Posted: Oct 15 2021 at 4:01pm
handguard marked “IO” and is the 4 rivet version. 

Barrel band is type 1A. 

My band spring has good tension. 

Rear of handguard can go all the way under to the receiver slit, but I feel as if I can see some of the “nose” of the handguard where it slides over the band. It does “snap” when I slide it on however. 


Posted By: floydthecat
Date Posted: Oct 15 2021 at 4:17pm
That being an original 1A band….I would not be bending on it too much either, but you can “slightly” deform the lip inward at the corners. You could come-by a type III or even a cheap commercial or repro TI for a shooter band and maybe tweak it to fit.

If you had a friend with lots of stuff, you could try other guards for fitment. Commercial guards generally run a little longer. I have an unmarked (presumed commercial) 4-rivet on one of mine that really fits good and matches my stock.

What you can do with it depends on if it’s just for looking at (collector) or a shooter. You can take more liberties with a shooter.


Posted By: Rebel92
Date Posted: Oct 15 2021 at 4:23pm
this is my shooter. I have a spare Vietnam era type 3 band and the tools needed to remove my sight. But really like how it looks as is and am having a hard time making my self change it... are you talking about bending the band it’s self? Would bending the metal end on the handguard at the receiver up so it catches the lip better help any? And no, I have no friends who share this hobby. I’m a “millennial“ (Gosh I hate that) so I’m pretty much a rarity.  Handguards look to be a lot cheaper than a type one band haha



Posted By: Rebel92
Date Posted: Oct 15 2021 at 4:29pm


Posted By: Jond41403
Date Posted: Oct 15 2021 at 4:36pm
from the picture it looks to me that the head of the retaining spring is sitting too far forward of your front band and when it fires it's letting the front band slide forward ever so slightly releasing your handguard to fly off. Maybe a trick of the lighting in the picture, but it looks like that retaining spring head should be closer to the band if that makes sense.hth


Posted By: floydthecat
Date Posted: Oct 15 2021 at 4:41pm
Yes….it can be common-practice to bend the metal tab ends on the rear of the guard to tighten that area up a bit, just lift the outer edge a tad. 

You have one thing going for you, an Inland hand guard is about the most common one, so you can replace it fairly easily. You know I would have to actually see whats going on with it before I shoot my mouth off about what you need to do.😁 

Remove the band spring and slide the band back against the nose of the guard and see if it tightens-up. If that helps, the hand guard is likely too short or the band spring is slightly out of position (the mounting hole).

About the only good remedy for that is a longer hand guard or bending the lip (ledge on the rear of the band) over/in a little to contact the hand guard. I absolutely do not tolerate a lose guard and I don’t prefer shims, plastic wood or glue on a gun. I have read where some shortened, reshaped and fashioned the band spring nose to allow the band to slide back farther against the guard and properly engage the band notch. As I look at the picture of yours, I think slightly bending the ledge on the back of the band might just tighten you up. You could put a piece of leather, cloth or rubber over the guard recess and see if it tightens up…..if it does, a little bending might just solve your problem.


Posted By: floydthecat
Date Posted: Oct 15 2021 at 5:36pm
On second look….I blew your picture up and think I can detect some space between the heel of the band spring nose and front of the band. That being the case, the band will shoot loose until it contacts the heel of the spring nose.

There in lies your problem. The fitment in that area is usually not that sloppy on GI carbines. Typically sloppy on a commercial.

I would measure the length of that guard from the rear to the front of the nose and shop for one longer. Nothing wrong with asking a seller to measure it. The usual GI guard is close to 8-1/8th. I have found some commercial guards to be 8-1/4.

I have a spare I think….I will measure it.


Posted By: Rebel92
Date Posted: Oct 15 2021 at 5:45pm
ok sounds good. I’m gonna measure mine when I get back home and post an update. 


Posted By: Rebel92
Date Posted: Oct 15 2021 at 6:06pm
I am pretty sure mines USGI. Just crappy quality control of it is indeed  short?


Posted By: Rebel92
Date Posted: Oct 15 2021 at 10:04pm
I just went and picked up my 2nd carbine, and WOW. Got my collector one outta the way. I field stripped it, and all the parts are appear to be correct for a mid 43 QH. I’m gonna check it’s handguard (2 rivet, marked RMC) against the one in question. My inland (the one with loose hand guard) is my first true love and my shooter. Will keep you updated. Also, let me know if you end up having a spare you don’t mind parting ways with. From the looks of the way the QH type 1 barrel band fits on its handguard, I do think mine is somehow short. 


Posted By: floydthecat
Date Posted: Oct 16 2021 at 5:57am



Measure yours like this. This is an unmarked one I have lying around.




Posted By: Rebel92
Date Posted: Oct 16 2021 at 10:54am
are you measuring from the end of the metal rivet plate, or where the wood and rivet meet? I stuck my rock ola one on my inland last night, and it fit perfect so I definitely believe it is something with the handguard dimensions. Wife has me out going to barn sales (I’m looking for stuff to at them) so will have to measure when I get home. But this morning when finishing up cleaning my new QHMC, I noticed I could not get the gas piston to move, even after flooding it with hoppes, and even tried to move it with a pair of tweezers. Gun has 0 carbon build up anywhere, seems like it hasn’t been shot in a long time. Even ran some patches through the bore and did not get anything. Any tips on what’s going on? Or do you think it just needs to be shot to free it up?


Posted By: Rebel92
Date Posted: Oct 16 2021 at 10:57am


Posted By: floydthecat
Date Posted: Oct 16 2021 at 11:10am
Do not include the metal tab, measure from wood-to-wood. Sounds like you're onto just a short hand guard. 

Shoot the carbine. If that don’t free it you will have to pull it. Shooting will usually do it.


Posted By: Rebel92
Date Posted: Oct 16 2021 at 1:36pm


Posted By: Rebel92
Date Posted: Oct 16 2021 at 1:38pm


Posted By: Rebel92
Date Posted: Oct 16 2021 at 1:49pm
I do think its a tiny tiny bit shorter. I mean a 1/16th of an inch 


Posted By: floydthecat
Date Posted: Oct 16 2021 at 2:26pm
It doesn’t take much to make a difference. With your screw just loose enough to slide the band, if you press it against the guard then slide it forward to touch the band heel….can you feel or detect some slack?


Posted By: Rebel92
Date Posted: Oct 16 2021 at 2:43pm
it will get under the lip of the band, but not much of it is contacting it. 


Posted By: floydthecat
Date Posted: Oct 16 2021 at 3:03pm
That is a better picture and it’s obvious now there is a considerable gap between the spring heel and the front of the band. The band is going to shoot-forward under fire.

The thing is, you are not going to be able to just purchase another guard and guarantee it might be a little longer. You really need access to several you can try. When you have more than one carbine, you can often switch guards around. The one that don’t fit that one might work on another one and vice-versa.

People have recommended:

Build up the nose-lip with a wood filler.
Add a fabric, rubber or leather shim at
   the front of the nose.
Customize the band spring nose by welding
   material and reshaping the heel.
Plug the band leg hole and move it rearward.

OR….get a longer guard. My experience with band springs is they are all the same.



Posted By: Rebel92
Date Posted: Oct 16 2021 at 3:13pm
how tight does the barrel band screw need to be under normal operation? Does the sling swivel need to move freely, or can it be so tight it doesn’t move? 


Posted By: Rebel92
Date Posted: Oct 16 2021 at 3:42pm
I just got my 2nd carbine last night, and it’s handguard does Fit it perfect. And I mean the screw on the band, not the retaining spring. Also, would I shim between barrel and handguard, or between the band and handguard?


Posted By: floydthecat
Date Posted: Oct 16 2021 at 3:55pm
Originally posted by Rebel92 Rebel92 wrote:

how tight does the barrel band screw need to be under normal operation? Does the sling swivel need to move freely, or can it be so tight it doesn’t move? 

Welcome to the good, the bad and the ugly.😁

The reason they updated the T1 band to the T2 at first and then T3 for the bayo lug, was to improve the strength of that connection point. The T1 band was/is prone to movement.

The good is that the T1 was the original band and is highly desired. If you have the original T1 band that came on the carbine….that’s the good. The bad is it’s inferior in terms of securing that connection. I don’t think you can tighten it enough to improve things without bending it or binding the swivel. If the band was properly engaging the spring, different matter, but yours isn't. For that matter, if the T2 or T3 does not lock into position on the spring heel, they won’t stay put either, but they will tighten-up more securely.

I’d put my T3 on it and see if it mates with that guard and shoot the thing. That T1 band can be worth north of $125.00…..put it in the safe!


Posted By: Smokpole
Date Posted: Oct 16 2021 at 3:58pm
Floyd. not all band springs are the same length. I just replaced a short one with a long one because the short one didn't hold the barrel band in place. The long one did snap over the band. I can tell you for certain that there are different lengths of springs.

-------------
OGCA Life member
NRA Life member
Ashtabula Rod and Gun Life member


Posted By: Rebel92
Date Posted: Oct 16 2021 at 4:06pm
can someone show me how it’s supposed to look?? I am losing my mind. Still lots to learn. Thanks 


Posted By: Smokpole
Date Posted: Oct 16 2021 at 4:10pm
That notch on the band should just barely go past the edge of the band, right up against it. There should be no gap between the back of the notch and the band. Yours shows a big gap. I think the round head springs are the shorter ones. The difference is only a few thousandths, but it makes a big difference in how they hold the band.

-------------
OGCA Life member
NRA Life member
Ashtabula Rod and Gun Life member


Posted By: floydthecat
Date Posted: Oct 16 2021 at 4:14pm
Originally posted by Smokpole Smokpole wrote:

Floyd. not all band springs are the same length. I just replaced a short one with a long one because the short one didn't hold the barrel band in place. The long one did snap over the band. I can tell you for certain that there are different lengths of springs.

I stand corrected, but it was just my personal experience. I have sought different springs, but never came up with one shorter or longer enough that made a difference. You don’t find them listed in any particular size….just band springs. 


Posted By: Rebel92
Date Posted: Oct 16 2021 at 4:19pm


Posted By: Rebel92
Date Posted: Oct 16 2021 at 4:20pm
I just posted my 2 side by side 


Posted By: floydthecat
Date Posted: Oct 16 2021 at 4:47pm
Originally posted by Rebel92 Rebel92 wrote:

I just posted my 2 side by side 

There’s your comparison. The band on the left butts right up against the heel (flat) on the back of the spring. The one on the right clearly shows the gap between the band and the heel.

Band noses can have a couple different configurations. Switch band springs and see if fitment improves. They tap out from the small hole on the left side of the stock.


Posted By: Rebel92
Date Posted: Oct 16 2021 at 4:48pm
do the metal tab at the rivets have to go all the way under receive lip? 


Posted By: floydthecat
Date Posted: Oct 16 2021 at 4:51pm
Originally posted by Rebel92 Rebel92 wrote:

do the metal tab at the rivets have to go all the way under receive lip? 

As long as the guard stays on…no. Maybe you are thinking about shimming that area? It’s possible.


Posted By: Rebel92
Date Posted: Oct 16 2021 at 4:54pm
yes. I put a very oily piece of a rag under the rivet, and it causes the handguard to try to stand up at the nose end, do you think that will help it engage the barrel band and the shim will hold the handguard in place? It looks promising to me but I am just beginning 


Posted By: Rebel92
Date Posted: Oct 16 2021 at 4:56pm
and on the side by side pic I posted above, do I want the band/retaining spring to fit like the carbine on the left?


Posted By: Rebel92
Date Posted: Oct 16 2021 at 5:23pm


Posted By: Rebel92
Date Posted: Oct 16 2021 at 5:25pm


Posted By: Rebel92
Date Posted: Oct 16 2021 at 5:27pm
I just put a piece of cloth greased up and put it under rivet so it would be really snug, pulled it out from the receiver the tiny amount you can see in the pic, and it gave me the result I just posted pertaining to the band/retaining spring assembly. Is that what I want it to look like? And will that hold up? I’m gonna test it, but would like to know if I’m pissing in the wind. 


Posted By: floydthecat
Date Posted: Oct 16 2021 at 5:33pm
Originally posted by Rebel92 Rebel92 wrote:

and on the side by side pic I posted above, do I want the band/retaining spring to fit like the carbine on the left?

Yes, like the one on the left. If you are trying to shim something, it has to make the guard shift forward the distance of the gap. Just place something like a pipe cleaner, rubber band or string across the top of the rear tab so it will prevent the guard from going all way home. As long as enough of the tab is under the lip, it should stay. Refrain from prying or mistreating that lip, they can be damaged.


Posted By: floydthecat
Date Posted: Oct 16 2021 at 5:36pm
Just me, but I am not a believer in shimming anything to make it fit. It just ain’t natural on a carbine.😁


Posted By: Rebel92
Date Posted: Oct 16 2021 at 5:55pm
okay I think I got it. I had none of the materials you listed, but have electrical tape and a razor blade, so I buy tiny strips and put on end of the metal rivet. Looks like it will hold and my band and spring are butting up against each other. Will shoot 100+ rounds tomorrow and see how she does. Gotta shoot my new QH also. But just testing it out. Thanks a lot Floyd. I am still wanting to find a longer handguard though. I don’t like Jerry rigging stuff haha


Posted By: Rebel92
Date Posted: Oct 16 2021 at 6:01pm
Originally posted by floydthecat floydthecat wrote:

Just me, but I am not a believer in shimming anything to make it fit. It just ain’t natural on a carbine.😁

YES ME EITHER. I’m anal about my stuff. I want it done right. But I really do not want to change out my barrel band. I have 0 problems with accuracy with it, and it looks awesome. I NEED a longer handguard. If you have one long I’ll pay you more than what it is worth. It’s like an addiction, once it’s in my mind I can’t get over it. 


Posted By: floydthecat
Date Posted: Oct 16 2021 at 6:38pm
I have one I can send you to try, but it’s not one you’d prolly like to have on there. I would surely take that band spring out of the one that fits over to the one that don’t. They appear to be of the two different types and if it works, you can pretty easily find one of that type. I never had any luck in finding one longer or shorter enough to make enough difference, but Smokepole indicates he has. If you can get enough to prevent the guard from popping out, it can be tightened if it’s only slightly lose. All you have to do is slide the band up and take a small punch and tap the band out from the small hole in the left side. I would just have to try that.


Posted By: W5USMC
Date Posted: Oct 16 2021 at 6:50pm
Originally posted by Rebel92 Rebel92 wrote:

I NEED a longer handguard. 

I have a handguard that came with some stocks I got from JLG, it is longer than any handguard I have ever seen, maybe foreign wood. Very long lip up-front, it may work for you, may even need sanded down a bit to fit. You can have it if you want to try it.


-------------
Wayne
USMC Retired
NRA Life Member


Posted By: floydthecat
Date Posted: Oct 16 2021 at 6:59pm
Jump on Wayne’s offer with both feet Rebel! I find Universal and Iver Johnson guards to be a tad longer and have one on a USGI carbine now. Wayne has one he knows to be long……can’t beat that.


Posted By: Rebel92
Date Posted: Oct 16 2021 at 7:57pm
yessir I will take it! Let me know what you want for it and what I need to do. And what is “JLG”?


Posted By: W5USMC
Date Posted: Oct 16 2021 at 8:17pm
PM sent, it will cost you the price of shipping. I meant to say J&G not "JLG" I must have been thinking about my Heavy Equipment days when I was typing. 
https://www.jgsales.com/" rel="nofollow - J&G Sales (jgsales.com)


-------------
Wayne
USMC Retired
NRA Life Member


Posted By: Rebel92
Date Posted: Oct 16 2021 at 8:32pm
Thank you! Let’s see how it does! Thanks for helping a newbie 


Posted By: Rebel92
Date Posted: Oct 22 2021 at 6:22pm
WAYNE Hooked me up. Not only does it match, but my barrel band now comes into to contact with the band retaining spring. Thank you, sir. Handguard no longer moves, even with the band screw un- tightened 



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