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Posted: 4/19/2016 2:47:39 PM EDT
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I have a pair of A2 handguards and I can not seem to get them to fit in a round end cap. Did they make some rifle length handguards only fit in triangle caps? I thought everything but A1's fit in both round and triangle caps. Maybe my cap is smaller for some reason. Do they make different size end caps?
I am building a dissipator 
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Quoted: I have a pair of A2 handguards and I can not seem to get them to fit in a round end cap. Did they make some rifle length handguards only fit in triangle caps? I thought everything but A1's fit in both round and triangle caps. Maybe my cap is smaller for some reason. Do they make different size end caps? I am building a dissipator http://i146.photobucket.com/albums/r241/ehonda_kgb/Guns/IMG_20160418_195849705_zpsss9t4npw.jpg The ones in the pic fit correctly. The tab goes under the top of the triangle on the top. It sticks out on the bottom. On round handguards they fit like your picture. There is no difference in the top and bottom hand guard, so they both have to look like that. |
| So they fit rotated off center? The handguard is not centered in the cap. The tab on the left fits inside the cut in the cap, were as the tab on the right is outside of the cut in the cap. And the bottom tab does not line up with the bottom of the cap. Basically the handguard is rotated counter-clockwise a few degrees. |
| It is my understanding that rifle length handguards use the triangle end cap and carbine length use the round cap. Hopefully someone with more knowlegde about the AR platform will verify or debunk my understanding. But I do believe round should work with A2 handguards. |
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It is my understanding that rifle length handguards use the triangle end cap and carbine length use the round cap. Hopefully someone with more knowlegde about the AR platform will verify or debunk my understanding. But I do believe round should work with A2 handguards. I have round & triangle 20" end caps. It's already been pointed out the HG's are not sitting on the bbl nut correctly. He's at least 2 teeth off center. Careful placement of guards (centered) on bbl nut will allow those guards to fit that cap. Those holes should be in alignment with the sling swivel mount. Those are not. |
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I have a loose round end cap and a set of A2 handguards in my hands. There is no way the cap will fit on the handguard. The outer circumference of the cap sits exactly on top of the locating tabs, instead of in between the protruding flange of the handguard and the tabs. The only reason you were able to partially get it on in your picture, is because of those cutouts on the bottom sides. But they are also what is forcing the handguard to one side. You don't have a simple misalignment problem as others are claiming.
I am not saying some companies are not making modified caps or handguards, that will work together, as others are stating. But in your case, they are not compatible. |
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Sorry for no responses. Had a death in the family.
Quoted:
I have a loose round end cap and a set of A2 handguards in my hands. There is no way the cap will fit on the handguard. The outer circumference of the cap sits exactly on top of the locating tabs, instead of in between the protruding flange of the handguard and the tabs. The only reason you were able to partially get it on in your picture, is because of those cutouts on the bottom sides. But they are also what is forcing the handguard to one side. You don't have a simple misalignment problem as others are claiming. I am not saying some companies are not making modified caps or handguards, that will work together, as others are stating. But in your case, they are not compatible. This is exactly whats happening which I why I was wondering if some h/g fit only triangle caps and/or if they made different sized caps. Do you think a set of Magpul MOE guards would work? |
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Quoted:
Sorry for no responses. Had a death in the family. This is exactly whats happening which I why I was wondering if some h/g fit only triangle caps and/or if they made different sized caps. Do you think a set of Magpul MOE guards would work? Quoted:
Sorry for no responses. Had a death in the family. Quoted:
I have a loose round end cap and a set of A2 handguards in my hands. There is no way the cap will fit on the handguard. The outer circumference of the cap sits exactly on top of the locating tabs, instead of in between the protruding flange of the handguard and the tabs. The only reason you were able to partially get it on in your picture, is because of those cutouts on the bottom sides. But they are also what is forcing the handguard to one side. You don't have a simple misalignment problem as others are claiming. I am not saying some companies are not making modified caps or handguards, that will work together, as others are stating. But in your case, they are not compatible. This is exactly whats happening which I why I was wondering if some h/g fit only triangle caps and/or if they made different sized caps. Do you think a set of Magpul MOE guards would work? Sorry for your loss. I just checked on a set of MAGPUL MOE rifle length and the round cap fits fine. I didn't check earlier because I thought you might be trying to stay with the retro look. |
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Quoted:
Sorry for your loss. I just checked on a set of MAGPUL MOE rifle length and the round cap fits fine. I didn't check earlier because I thought you might be trying to stay with the retro look. Quoted:
Quoted:
Sorry for no responses. Had a death in the family. Quoted:
I have a loose round end cap and a set of A2 handguards in my hands. There is no way the cap will fit on the handguard. The outer circumference of the cap sits exactly on top of the locating tabs, instead of in between the protruding flange of the handguard and the tabs. The only reason you were able to partially get it on in your picture, is because of those cutouts on the bottom sides. But they are also what is forcing the handguard to one side. You don't have a simple misalignment problem as others are claiming. I am not saying some companies are not making modified caps or handguards, that will work together, as others are stating. But in your case, they are not compatible. This is exactly whats happening which I why I was wondering if some h/g fit only triangle caps and/or if they made different sized caps. Do you think a set of Magpul MOE guards would work? Sorry for your loss. I just checked on a set of MAGPUL MOE rifle length and the round cap fits fine. I didn't check earlier because I thought you might be trying to stay with the retro look. thanks for checking it out. Not really going retro. I just happen to have been given these handguards. Going with the MOE will be easier than hammering out those pins again to swap out the end cap. |
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Sorry for your loss. You don't need to swap out the cap or get a new set of hand guards. Just take them off and line them up on center. The holes in the hand guards are supposed to line up top and bottom center.
Slide the front of the hand guard in the end cap line it up center line. Then, push the delta ring down and slide the rear of the hand guard into the delta ring and it will slide up over the bottom lip of the hand guard and hold it in place. Here is a you tube video that somewhat shows it and the alignment of them. Skip to 5:20 
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Not sure why you keep insisting on this, they're clearly not compatible... your video even showed installing with a triangle cap. Quoted:
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You don't need to swap out the cap or get a new set of hand guards. Not sure why you keep insisting on this, they're clearly not compatible... your video even showed installing with a triangle cap. On closer inspection those hand guards are probably being held off center by those tabs I circled. If I remember correctly they may not be at all compatible. I believe the M-4 end cap is a different size circle and you would need a triangle or A2 full round end cap. 
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I have a spare M-4 end cap and some A-2 hand guards, let me test out a theory and I will post results in a few minutes.
Nope, not compatible. My apologies. I drilled out the tabs I circled and the A2 hand guards won't fit in the circle. There are some later A-2 commercial copy hand guards that will fit the M-4, the A2 round and the triangle hand guards. I happen to have a set, but they aren't for sale. I got them with the 20" A2 rifle kit from Del-Ton. If I had a spare triangle or A2 round end cap I would send you one free of charge. Sarco Arms has the end caps you are looking for in stock. http://www.e-sarcoinc.com/ar15m16handguardcaptriangular.aspx http://www.e-sarcoinc.com/ar15m16handguardcapround.aspx |
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I have a spare M-4 end cap and some A-2 hand guards, let me test out a theory and I will post results in a few minutes. I already did that and explained why they are not compatible. Read all the posts before you continue dishing out inaccurate information. |
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I already did that and explained why they are not compatible. Read all the posts before you continue dishing out inaccurate information. Quoted:
Quoted:
I have a spare M-4 end cap and some A-2 hand guards, let me test out a theory and I will post results in a few minutes. I already did that and explained why they are not compatible. Read all the posts before you continue dishing out inaccurate information. I agree with H53EXPERT, It seems to be that the cap and the handguard tabs are 2 different diameters. I will measure them when I get home. I think I will just go with the Magpul MOE's. UDATE: Installed the MOE rifle length guards last night with no issue. Thanks!!! |
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I agree with H53EXPERT, It seems to be that the cap and the handguard tabs are 2 different diameters. I will measure them when I get home. I think I will just go with the Magpul MOE's. UDATE: Installed the MOE rifle length guards last night with no issue. Thanks!!! Quoted:
Quoted:
Quoted:
I have a spare M-4 end cap and some A-2 hand guards, let me test out a theory and I will post results in a few minutes. I already did that and explained why they are not compatible. Read all the posts before you continue dishing out inaccurate information. I agree with H53EXPERT, It seems to be that the cap and the handguard tabs are 2 different diameters. I will measure them when I get home. I think I will just go with the Magpul MOE's. UDATE: Installed the MOE rifle length guards last night with no issue. Thanks!!! Awesome! |
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