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Posted: 4/11/2010 10:11:30 AM EDT
Ask me, I know. I thought that I had read somewhere that they were supposed to?
Side rails installed 
Scratches caused by putting handguard with rails installed back on gun 
..and when I first started having trouble I removed the bottom rail (which was a bitch to install, not even a full turn of the screw to hold the rail on) and these scratches are from the bottom rail screws. 
So when can I buy rails that will fit my ACR? |
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Posted: 4/11/2010 10:36:37 AM EDT
[#1]
Dremel?
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Posted: 4/11/2010 11:06:50 AM EDT
[#2]
Ask Bushmaster.
Or you could try cutting down the screws so that they don't protrude into the handguard so far. |
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Posted: 4/11/2010 12:10:39 PM EDT
[#3]
Inc SOC.
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Posted: 4/11/2010 12:32:32 PM EDT
[#4]
Quoted:
Inc SOC. LOL! |
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Posted: 4/11/2010 2:56:59 PM EDT
[#5]
Quoted:
Ask me, I know. I thought that I had read somewhere that they were supposed to? Side rails installed So when can I buy rails that will fit my ACR? Is the problem the rails, or are the screws too long? I'm not trying to be a smart ass, I'm just curious. I have the GG&G rail section for M4 hanguards and had to trim the screws. |
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Posted: 4/11/2010 4:40:07 PM EDT
[#6]
the screws are to #$%#^% long!!!!
I had the same problem with a MOE rail installed on a MOE handguard that is on a 16" Oly ultra-match(heavy) barrel, screws were so long that they hit the barrel. As long as they were I suspect they only clear a standard barrel by a MM or two. Had to Dremel off the excess length (over1/4") before I could reinstall the handguard. |
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Posted: 4/11/2010 8:10:26 PM EDT
[#7]
Or you could've bought shorter screws from a hardware store....
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Posted: 4/11/2010 8:27:06 PM EDT
[#8]
Quoted:
Or you could've bought shorter screws from a hardware store.... I can and I probably will but the point is is that I shouldn't have to make a product work, it should work right out of the package. |
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Posted: 4/11/2010 8:31:57 PM EDT
[#9]
Quoted:
Quoted:
Or you could've bought shorter screws from a hardware store.... I can and I probably will but the point is is that I shouldn't have to make a product work, it should work right out of the package. So you're saying the product designed for the AR MOE handguard should work out of the package for the rifle it's not designed for? |
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Posted: 4/11/2010 8:39:58 PM EDT
[#10]
Would have thought with Costa's awesome beard powers he could have prodicted such a thing
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Posted: 4/11/2010 9:24:31 PM EDT
[#11]
Quoted:
Quoted:
Quoted:
Or you could've bought shorter screws from a hardware store.... I can and I probably will but the point is is that I shouldn't have to make a product work, it should work right out of the package. So you're saying the product designed for the AR MOE handguard should work out of the package for the rifle it's not designed for? Actually I think on magpuls website (which I cannot access right now) it says that the MOE rails will work with the ACR. ..and I'm not the only ACR owner that has heard that the MOE rails are supposed to work with the ACR since another person ordered a set for their ACR. |
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Posted: 4/12/2010 7:43:46 AM EDT
[#12]
Stay tuned- we're assessing the situation...
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Posted: 4/12/2010 8:04:15 AM EDT
[#13]
Give a yell to Bushmaster. Ask them WTF.
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Posted: 4/12/2010 8:54:37 AM EDT
[#14]
good idea
 Quoted: Dremel? |
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Posted: 4/12/2010 9:49:04 AM EDT
[#15]
Quoted:
Quoted:
Quoted:
Quoted:
Or you could've bought shorter screws from a hardware store.... I can and I probably will but the point is is that I shouldn't have to make a product work, it should work right out of the package. So you're saying the product designed for the AR MOE handguard should work out of the package for the rifle it's not designed for? Actually I think on magpuls website (which I cannot access right now) it says that the MOE rails will work with the ACR. ..and I'm not the only ACR owner that has heard that the MOE rails are supposed to work with the ACR since another person ordered a set for their ACR. True, true and true ! |
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Posted: 4/12/2010 10:50:14 AM EDT
[#16]
Meh. They are just some scratches.
Mine did the same thing. I ground down the screws for a flush fit. If they really bother you, hit them with some high-temp flat black paint. Av. |
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Posted: 4/12/2010 12:57:01 PM EDT
[#17]
Quoted:
Meh. They are just some scratches. Mine did the same thing. I ground down the screws for a flush fit. If they really bother you, hit them with some high-temp flat black paint. Av. I could care less about the scratches and really could live without the side rails but I really want a bottom rail! |
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Posted: 4/12/2010 1:47:03 PM EDT
[#18]
Notice that your barrel release lever is off to the side. Did it come that way, or did you tighten it up more like OMD did in his review?? According to a BM Rep. in a recent video, he states the sights will remain zerod when the barrel is taken off and re-installed. Have you tested such? I have read otherwise.. |
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Posted: 4/12/2010 1:57:20 PM EDT
[#19]
Quoted:
http://www.theplaceholder.com/forums/imagehosting/544bc20feed9989.jpg Notice that your barrel release lever is off to the side. Did it come that way, or did you tighten it up more like OMD did in his review?? According to a BM Rep. in a recent video, he states the sights will remain zerod when the barrel is taken off and re-installed. Have you tested such? I have read otherwise.. The lever was like that originally, that was the first thing that I checked when I bought the gun. I have yet to test the RTZ feature but plan on going back to the range at the end of this week. |
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Posted: 4/12/2010 2:03:01 PM EDT
[#20]
Here it is;
"Everytime you mount it, it will return to zero" 1:22 http://www.americanrifleman.org/Video.aspx?vid=2218&cid=23 |
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Posted: 4/13/2010 6:00:20 PM EDT
[#21]
I just installed a side rail upper right side position and I got a new mark on the lower part of the gas block too.
The rail section screws or flat backers push the handguard liner in a bit farther causing a new rub area on the lower gas block. My screws did not contact any part of the gun . Also , the more you take the handguards off , the more rubbing you will get where the liners contact the barrel components. Mine have been off about 30 times for photos and show and tell and I had aluminum rubbings all over. The rail section does appear to generate a rub in a new area though. |
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Posted: 4/24/2010 9:24:01 AM EDT
[#22]
Why not incorporate an internal low profile flanged lock nut (Bushing) to the inside of the handguard for retention of the screws? This would prevent marring the finish of the barrel components ,and provide a stable mounting platform for the rails. I'm sure retrofitting such a mounting nut could be accomplished with existing ACR handguards. Yellow representing the ends of the bushings.
Yup, I'd like to mount a rail or two myself.. Hope this issue is being addressed. |
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Posted: 4/24/2010 1:34:02 PM EDT
[#23]
Hey guys I put my moe rails on my acr to day and they fit no problem. I now have a afg on my acr. Maybe I got round 2 of the moe rails
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Posted: 4/24/2010 1:43:16 PM EDT
[#24]
Quoted:
Hey guys I put my moe rails on my acr to day and they fit no problem. I now have a afg on my acr. Maybe I got round 2 of the moe rails Good to know. Awaiting MAGPUL's responce. |
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Posted: 4/24/2010 3:16:35 PM EDT
[#25]
Quoted:
Hey guys I put my moe rails on my acr to day and they fit no problem. I now have a afg on my acr. Maybe I got round 2 of the moe rails Any pics ? |
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Posted: 4/26/2010 5:27:23 PM EDT
[#26]
I have MOE rails on the bottom and side of my handguards. No problem on the bottom. The side rail I could only fit one screw. I hope Magpul come up with a solution to this problem I would like to add more rails. Here's a pic. I have an AFG and a Surefire G2 in a Vltor scout mount currently on my handguards.
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Posted: 4/27/2010 1:41:00 PM EDT
[#27]
Quoted:
Stay tuned- we're assessing the situation... Any news yet? |
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Posted: 4/27/2010 3:02:47 PM EDT
[#28]
Quoted:
Quoted:
Stay tuned- we're assessing the situation... Any news yet? Well, the issue is not the fastener length- the screw itself does not touch the receiver. However, the top edge of the weld-nut does rub along the receiver tabs that hold the hand guard in place. To work with the ACR on the side slots we'll probably have to build a custom nut of some sort. If or when this will happen, I do not know... While we do not recommend modifying any of our products, in theory you could file a chamfer on the edge of the weld nut which should mitigate the receiver scuffing. |
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Posted: 4/27/2010 3:31:13 PM EDT
[#29]
Justin
thanks for answering my question so quickly. I will see if I can come up with somthing in the meantime. |
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Posted: 4/27/2010 5:47:58 PM EDT
[#30]
Quoted:
Quoted:
Quoted:
Stay tuned- we're assessing the situation... Any news yet? Well, the issue is not the fastener length- the screw itself does not touch the receiver. However, the top edge of the weld-nut does rub along the receiver tabs that hold the hand guard in place. To work with the ACR on the side slots we'll probably have to build a custom nut of some sort. If or when this will happen, I do not know... While we do not recommend modifying any of our products, in theory you could file a chamfer on the edge of the weld nut which should mitigate the receiver scuffing. I HOPE that I'm reading this wrong. It's been a long enough day, and I don't feel like bitching right now.....I will say that your "IF" part kinda rubs me the wrong way...Especially for a rifle that cost's what the ACR does, and now there's a possibility that rail panels won't be available for the Basics' handguards? 
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Posted: 4/27/2010 9:14:10 PM EDT
[#31]
Quoted:
Quoted:
Quoted:
Quoted:
Stay tuned- we're assessing the situation... Any news yet? Well, the issue is not the fastener length- the screw itself does not touch the receiver. However, the top edge of the weld-nut does rub along the receiver tabs that hold the hand guard in place. To work with the ACR on the side slots we'll probably have to build a custom nut of some sort. If or when this will happen, I do not know... While we do not recommend modifying any of our products, in theory you could file a chamfer on the edge of the weld nut which should mitigate the receiver scuffing. I HOPE that I'm reading this wrong. It's been a long enough day, and I don't feel like bitching right now.....I will say that your "IF" part kinda rubs me the wrong way...Especially for a rifle that cost's what the ACR does, and now there's a possibility that rail panels won't be available for the Basics' handguards?
Let me clarify. The MOE rails, while being 'universal', have hardware optimized for the MOE Hand Guards. They DO still fit the ACR, but their hardware is not optimized for that platform. At this time we do not know if we will build custom hardware to fit the ACR, when that may happen if we do, or how we will accomplish it. Basically, we do not release information on projects we may or may not have in the works. Keep an eye on the website for updates. |
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Posted: 4/28/2010 12:01:27 PM EDT
[#32]
So far I have put an AFG, Vltor Scout light mount and a sling mount on my ACR. Three MOE rails, one on bottom, one on left side towards the front, and one on the left side towards the rear of the handguards. The rail on the rear took some creativity on my part to get it to clear the reciever but it is very functional. I'm sure Magpul will find a soulution to this problem, they stick behind all of there products. If you want further info on how I got this to work just let me know.
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Posted: 5/1/2010 12:24:03 PM EDT
[#33]
To mount the MOE side rails, I had to chamfer all four weld nuts (and add a touch of grease).
____________________________________________________________________________________ Also, the standard length MOE rail screws are too short to mount the MOE bottom rail to the handguard (due to the additional distance created by the heat shield). To solve this problem, I used the longer RVG rail screws (that come with the 2 slot RVG mini rail) to mount the MOE bottom rail. 
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Posted: 5/2/2010 6:59:22 PM EDT
[#34]
Quoted:
To mount the MOE side rails, I had to chamfer all four weld nuts (and add a touch of grease). ____________________________________________________________________________________ Also, the standard length MOE rail screws are too short to mount the MOE bottom rail to the handguard (due to the additional distance created by the heat shield). To solve this problem, I used the longer RVG rail screws (that come with the 2 slot RVG mini rail) to mount the MOE bottom rail. http://i73.photobucket.com/albums/i220/hkmp5kpdw/DSC00006.jpg?t=1272752669 http://i73.photobucket.com/albums/i220/hkmp5kpdw/DSC00003.jpg?t=1272743447 Actually, the weld nuts go under the heat shield (with the protrusion facing inward)... |
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Posted: 5/2/2010 7:55:12 PM EDT
[#35]
The Tapco rails will fit without zero interference. I have carnal knowledge!
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Posted: 5/3/2010 4:19:52 PM EDT
[#36]
Quoted:
Actually, the weld nuts go under the heat shield (with the protrusion facing inward)... Thanks. How do you get the nuts under the heat shield ? |
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Posted: 5/4/2010 6:19:38 AM EDT
[#37]
Quoted:
Quoted:
Actually, the weld nuts go under the heat shield (with the protrusion facing inward)... Thanks. How do you get the nuts under the heat shield ? They just slide in from the end. |
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Posted: 5/4/2010 3:06:20 PM EDT
[#38]
Quoted:
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Actually, the weld nuts go under the heat shield (with the protrusion facing inward)... Thanks. How do you get the nuts under the heat shield ? They just slide in from the end. That's the first thing I tried. It didn't work (not enough space between the heat shield and handguard. Once you fit it into the first heat shield gap, there doesn't seem to be any way to force it forward to the third gap (without using a hammer) . |
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Posted: 5/4/2010 3:30:22 PM EDT
[#39]
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Actually, the weld nuts go under the heat shield (with the protrusion facing inward)... Thanks. How do you get the nuts under the heat shield ? They just slide in from the end. That's the first thing I tried. It didn't work (not enough space between the heat shield and handguard. Once you fit it into the first heat shield gap, there doesn't seem to be any way to force it forward to the third gap (without using a hammer) . Worked for me.. are you sure the protusion is facing inward (not trying to be a smarta@#) I tried mine upside down first..
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Posted: 5/4/2010 5:39:07 PM EDT
[#40]
Quoted:
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Quoted:
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Actually, the weld nuts go under the heat shield (with the protrusion facing inward)... Thanks. How do you get the nuts under the heat shield ? They just slide in from the end. That's the first thing I tried. It didn't work (not enough space between the heat shield and handguard. Once you fit it into the first heat shield gap, there doesn't seem to be any way to force it forward to the third gap (without using a hammer) . Worked for me.. are you sure the protusion is facing inward (not trying to be a smarta@#) I tried mine upside down first.. When I originally used the correct screws (but through the heat shield), it must have "pulled" the shield closer to the handguard, blocking my attempt to slide the weld nuts undeneath the heat shield. Good to go now. Thanks. |
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Posted: 5/4/2010 6:05:45 PM EDT
[#41]
Quoted:
Quoted:
Quoted:
Quoted:
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Actually, the weld nuts go under the heat shield (with the protrusion facing inward)... Thanks. How do you get the nuts under the heat shield ? They just slide in from the end. That's the first thing I tried. It didn't work (not enough space between the heat shield and handguard. Once you fit it into the first heat shield gap, there doesn't seem to be any way to force it forward to the third gap (without using a hammer) . Worked for me.. are you sure the protusion is facing inward (not trying to be a smarta@#) I tried mine upside down first.. When I originally used the correct screws (but through the heat shield), it must have "pulled" the shield closer to the handguard, blocking my attempt to slide the weld nuts undeneath the heat shield. Good to go now. Thanks. 
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