Posted: 8/16/2010 5:10:10 PM EDT
| I sent an email to LaRue but in the meantime thought I might get a quicker response on here. I think I have a fitment issue with a LaRue stripped upper. It fits entirely too tight and the rear pin has to be pretty much hammered in to make it fit. The lowers I have tried it on are an SMOS/LaRue lower and a new LaRue lower with the same results. However, it did fit better on a Spikes non billet lower. I have a complete Stealth upper which fits perfectly on both lowers and both pins can be moved by hand. It seems maybe it is to tight towards the front pin which may be causing the rear pin to not align correctly, or the fit is to tight that the rear pin just doesnt line up. It is currently assembled with a Spikes Lothar Walther .22lr barrel and bolt, and a 9" LaRue rail. Just hoping one of the guys sees this and lets me know what I need to do. |
|
Quoted: I sent an email to LaRue but in the meantime thought I might get a quicker response on here. I think I have a fitment issue with a LaRue stripped upper. It fits entirely too tight and the rear pin has to be pretty much hammered in to make it fit. The lowers I have tried it on are an SMOS/LaRue lower and a new LaRue lower with the same results. However, it did fit better on a Spikes non billet lower. I have a complete Stealth upper which fits perfectly on both lowers and both pins can be moved by hand. It seems maybe it is to tight towards the front pin which may be causing the rear pin to not align correctly, or the fit is to tight that the rear pin just doesnt line up. It is currently assembled with a Spikes Lothar Walther .22lr barrel and bolt, and a 9" LaRue rail. Just hoping one of the guys sees this and lets me know what I need to do. Weird that a complete upper and stripped upper have SUCH a difference. My complete upper on a Larue lower fits fairly loose. Not to the point of being sloppy, but I barely have to try and push the takedown pins. Not knowing more, or having looked at it, I'd say you have a bum receiver.
|
|
Quoted: I've had the same issue. I'm pretty sure LT mkes them that way on purpose. I've got a Stealth upper on a LT lower and they're really tight, but I have noticed that they're not as bad as they used to be, but they are definitely tight. Wish mine was! I still haven't even gotten to shoot mine since I put the LT lower on, though. |
| I actually have to palm strike the front pivot/takedown pin to break the upper from the lower, but I used to have to have to hold the rfile upright and give it a little kick in the magwell area to break it open. Crazy tight fit, but it's solid as it could possibly be. |
| My stealth upper and lower used to be crazy tight like that. After a bunch of range trips, followed by cleanings, round count of about 1.5k, she's finally starting to loosen up a bit. I'm thinking you'll just have to keep working with her till she's loosened up man. They make their stuff exactly to spec and leave no room for "wiggle". |
| I had the same problem, except it was LT upper with a Noveske lower. I sent both back to Noveske and they hand fit the LT upper to one of their lowers and since they are the manufacturer, they were able to just mail the new fitted lower back to me. Perhaps LaRue will do something similar especially since both upper/lower are theirs. |
When I first got my Stealth upper (Thanks again Mark and company!) I had to literally hammer it onto the Superior lower (all I had at the time). Okay, I didn't actually use a hammer, just the palm of my hand, but I did have to smack it VERY hard to get it closed enough in order to get the takedown pin in. The bonus is I wouldn't be needing an AccuWedge with this upper. 
Then I received and assembled my LaRue billet lower and it too was a very tight fit to the upper, but not quite as tight as the Superior lower. Only minor hand-hammering was required to mate the two halves. I assembled the two halves and thought "Oh well, I just won't disassemble the gun again for a long time and will simply squirt lube through the ejection port if the rifle becomes dirty and sluggish". 
Guilt finally got to me and I took the two halves apart for cleaning. They came apart far easier than they went together, but are still what I could call tight, which is a good thing IMO. Thanks again to Mark and all the fine folks at LaRue! 
|
| No, you guys dont understand. I have to use a hammer. First, I have to slam the upper and lower together. If you look through the rear pin, it doesnt line up. The only way to get it together is use a hammer to hammer the rear pin in which I definitely dont want to do. I think the tension on the whole gun after that is causing problems. The magazine release is now not working correctly like there is a tension on it. I know how LaRue machines their stuff. Both of my LaRue lowers fit perfectly with my complete Stealth 16" upper. Both do not line up correctly with the newer stripped Stealth upper. I seriously think there is an issue with this upper receiver. I have an email in to LaRue and am waiting on a response. |
|
Quoted: No, you guys dont understand. I have to use a hammer. First, I have to slam the upper and lower together. If you look through the rear pin, it doesnt line up. The only way to get it together is use a hammer to hammer the rear pin in which I definitely dont want to do. I think the tension on the whole gun after that is causing problems. The magazine release is now not working correctly like there is a tension on it. I know how LaRue machines their stuff. Both of my LaRue lowers fit perfectly with my complete Stealth 16" upper. Both do not line up correctly with the newer stripped Stealth upper. I seriously think there is an issue with this upper receiver. I have an email in to LaRue and am waiting on a response. That's what I was getting at. I think you have a messed up stripped upper. Every company makes mistakes. I'm sure they'll sort it out. |
| Well I talked to a guy at the shop who insisted that they are just suppose to be that tight. After insisting that something is wrong with the upper receiver, he did give me the option of sending it back in for them to check it. So I guess my options are either to send it in as a complete upper because I do not have the tools to dissassemble it or go have PK Firearms take it back apart for me and send in the stripped upper. I am going to take some pictures of what I am seeing and why I think that there is a problem and send them to I guess. Any other ideas MFingar? |
|
Quoted: Well I talked to a guy at the shop who insisted that they are just suppose to be that tight. After insisting that something is wrong with the upper receiver, he did give me the option of sending it back in for them to check it. So I guess my options are either to send it in as a complete upper because I do not have the tools to dissassemble it or go have PK Firearms take it back apart for me and send in the stripped upper. I am going to take some pictures of what I am seeing and why I think that there is a problem and send them to I guess. Any other ideas MFingar? I'd prolly send it back... I know its a hassle, but what else can you really do? Who better to look at it than the folks who made it... What would you like them to do??? |
I have a Stealth upper and a LT lower that had to be beat into place with a rubber mallet during the initial build. My LT lower is stamped SMOS. I believe I was so frustrated with it that I may have even taken a few swipes at it with a file. IT WAS TIGHT! As disconcerting as this caveman approach was at the time, I am very pleased with the fit at this point. I have approx. 1500 rounds through it (bought in May) and it breaks down like 'BUTTER"...in a good way. Everything remains tight without any play at all and I can finally break it down by hand - with just the right amount of effeort.
No accuwedge need apply. |
| I'm in a similar but opposite situation. My stripped upper purchased through BCM for the m4 cuts fits loose on my larue lower. A slight wiggle is felt. A little wobble is probably not a big deal but just a little surprised as every brags about perfect and tight their fit is. I haven't shot this rifle yet so I don't know it performs but I am anxiously awaiting a lo pro gas block |
|
Quoted:
Low post count. What does a low post count have to do with anything? I own quite a few LaRue products. 2 LaRue lowers, a 16"/11" Stealth upper, SPR-1.5 mount, Mini Acog mount, stripped stealth upper, index clips, FUG, and a 9" LaRue rail. That's over $2500 worth of LaRue purchases and I could be forgetting something. I think that gives me an opinion and a leg to stand on. I have had no complaints at all about anything that I have purchased from them until now. Im not bad mouthing them in any way. I have emailed, called, and posted on here to get advice on my problem. Usually posting on here gets me all of the information I need, until people chime in trying to swing their manhood around. I dont sit around and brag about what I have or dont have with a post count through the roof. If you want I can go throw open the Fort Knox and take pictures to post of what I have and what the problem is or you can take my word for it. Take yourself out of this thread and do us all a favor if you have no useful input to add. |
| My upper and lower fit together VERY tight when I first got it. I found a little CLP goes a long way here, I'm sure you guys use other lubricants, but I have a buttload of this stuff from when I was active duty. I have around 1k rounds through it now, and it disassembles much easier. |