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Posted: 2/12/2010 8:19:25 PM EDT
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I am looking at the American Defense Aimpoint mounts. The question is, which type to get? I may be using a magnifier behind the Aimpoint, and I would assume that I would want the 1/3rd co-witness so I can see more sight picture. This leads me to believe that the cantilever mount they make would be the best choice. Any reason why another type of mount might be better? I am a little concerned with the long arm on the cantilever mount breaking if the rifle is dropped on a hard surface, with the optic hitting first. Would this be an issue? Also, this mount setup would only be mounted on the actual receiver, because I will not be running any FF hand guards. Aimpoint owners/users, your input is strongly desired!  Thanks, Mike |
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Hi Mike,
I know you asked for American Defense mounts....but if you pay just a little more, you get LaRue's mounts that are superior and like they say "you get what you pay for. " The tall mount will get you the 1/3rd cowitness and then there's the AP 3X magnifier that is matched exactly with the QD pivot mount. 
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Quoted: Hi Mike, I know you asked for American Defense mounts....but if you pay just a little more, you get LaRue's mounts that are superior and like they say "you get what you pay for. " The tall mount will get you the 1/3rd cowitness and then there's the AP 3X magnifier that is matched exactly with the QD pivot mount. http://i47.tinypic.com/2vii44m.jpg Cool thanks. Do you prefer the 1/3 cowitness mount yourself? Mike |
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When I bought the LaRue AP M4s, the tall mount is what I ordered. Honestly, the 1/3rd cowitness is all I know. Someother member will probably chime in and give you his imput on a absolute cowitness.
But getting back to mounts, I have shot about 5K rounds on my rifle/optic setup, and each time I take my optic off and put back on, my zero is right where it should be..maybe just a hair off. Good mounts do that for you. Just make sure you put it back exactly where it was zeroed. 
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Quoted:
When I bought the LaRue AP M4s, the tall mount is what I ordered. Honestly, the 1/3rd cowitness is all I know. Someother member will probably chime in and give you his imput on a absolute cowitness. But getting back to mounts, I have shot about 5K rounds on my rifle/optic setup, and each time I take my optic off and put back on, my zero is right where it should be..maybe just a hair off. Good mounts do that for you. Just make sure you put it back exactly where it was zeroed. http://i48.tinypic.com/2enrr42.jpg To the poster above......did you know your mount is backwards??? It doesn't make much difference, but the "cantilever" portion is meant to be out over the barrel nut. Just thought you might want to know. If you already knew, then pardon me for butting my nose in. I love my Larue mounts. I have 2 for my CompM4 optics. As mentioned above, "someone" will chime in about absolute co-witness......thats me.  I really do prefer absolute over the 1/3 setup.
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Quoted: Quoted: When I bought the LaRue AP M4s, the tall mount is what I ordered. Honestly, the 1/3rd cowitness is all I know. Someother member will probably chime in and give you his imput on a absolute cowitness. But getting back to mounts, I have shot about 5K rounds on my rifle/optic setup, and each time I take my optic off and put back on, my zero is right where it should be..maybe just a hair off. Good mounts do that for you. Just make sure you put it back exactly where it was zeroed. http://i48.tinypic.com/2enrr42.jpg To the poster above......did you know your mount is backwards??? It doesn't make much difference, but the "cantilever" portion is meant to be out over the barrel nut. Just thought you might want to know. If you already knew, then pardon me for butting my nose in. I love my Larue mounts. I have 2 for my CompM4 optics. As mentioned above, "someone" will chime in about absolute co-witness......thats me. I really do prefer absolute over the 1/3 setup. http://img.photobucket.com/albums/v510/yfz450air/IMG_1704.jpg Thanks. I will be running this on a 16" middy with a fixed FSB, so my concern is that I will have too much of the FSB in view to really get the benefit of the Aimpoint. I was planning on running it with the BUIS folded down, and only use the irons as a backup system. In my situation, do you think the absolute co-witness would still be the best choice? |
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I prefer absolute on all my guns....even those with FSB's. But, that is personal preference. Ok thanks! Not trying to be nit-picky, but what exactly do you like about the absolute co-witness? Is it because it is closer the bore? For me its all about the "cheek-weld" on the stock. When I put the rifle in the natural shooting position, the standard height sights line up directly in line with my eye. I don't want to change my cheek-weld to line up with a "raised optic" that puts the center line of the optic above the natural placement of my eye. I hope that is more clear. Good luck. |
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When I bought the LaRue AP M4s, the tall mount is what I ordered. Honestly, the 1/3rd cowitness is all I know. Someother member will probably chime in and give you his imput on a absolute cowitness. But getting back to mounts, I have shot about 5K rounds on my rifle/optic setup, and each time I take my optic off and put back on, my zero is right where it should be..maybe just a hair off. Good mounts do that for you. Just make sure you put it back exactly where it was zeroed. http://i48.tinypic.com/2enrr42.jpg To the poster above......did you know your mount is backwards??? It doesn't make much difference, but the "cantilever" portion is meant to be out over the barrel nut. Just thought you might want to know. If you already knew, then pardon me for butting my nose in. Yup, I screwed up when I first got the sight....here's a more recent pic. Thanks!  |
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Quoted:
Quoted: Quoted: When I bought the LaRue AP M4s, the tall mount is what I ordered. Honestly, the 1/3rd cowitness is all I know. Someother member will probably chime in and give you his imput on a absolute cowitness. But getting back to mounts, I have shot about 5K rounds on my rifle/optic setup, and each time I take my optic off and put back on, my zero is right where it should be..maybe just a hair off. Good mounts do that for you. Just make sure you put it back exactly where it was zeroed. http://i48.tinypic.com/2enrr42.jpg To the poster above......did you know your mount is backwards??? It doesn't make much difference, but the "cantilever" portion is meant to be out over the barrel nut. Just thought you might want to know. If you already knew, then pardon me for butting my nose in. Yup, I screwed up when I first got the sight....here's a more recent pic. Thanks! http://i48.tinypic.com/2nu1sp5.jpg 1098cya, would you mind taking a picture of your sight picture through the aimpoint and posting it up here? I am seeing a bunch of pictures online of the Aimpoints with the absolute co-witness but very few if any with the 1/3 co-witness (with the sight turned on). If you could set it up so that the front sight is up and the rear one is down that would be great! I'm running a fixed FSB and a BUIS on my 16" middy build, so this would give me an accurate idea of what it will look like. Thanks a bunch! Mike |
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When I bought the LaRue AP M4s, the tall mount is what I ordered. Honestly, the 1/3rd cowitness is all I know. Someother member will probably chime in and give you his imput on a absolute cowitness. But getting back to mounts, I have shot about 5K rounds on my rifle/optic setup, and each time I take my optic off and put back on, my zero is right where it should be..maybe just a hair off. Good mounts do that for you. Just make sure you put it back exactly where it was zeroed. http://i48.tinypic.com/2enrr42.jpg To the poster above......did you know your mount is backwards??? It doesn't make much difference, but the "cantilever" portion is meant to be out over the barrel nut. Just thought you might want to know. If you already knew, then pardon me for butting my nose in. Yup, I screwed up when I first got the sight....here's a more recent pic. Thanks! http://i48.tinypic.com/2nu1sp5.jpg 1098cya, would you mind taking a picture of your sight picture through the aimpoint and posting it up here? I am seeing a bunch of pictures online of the Aimpoints with the absolute co-witness but very few if any with the 1/3 co-witness (with the sight turned on). If you could set it up so that the front sight is up and the rear one is down that would be great! I'm running a fixed FSB and a BUIS on my 16" middy build, so this would give me an accurate idea of what it will look like. Thanks a bunch! Mike There's alot of FAIL in these pics, but it's the best I can do. Don't know why the red dot is transparent and HUGE, but you get the idea...I hope. 
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Speaking of 1/3 cowitness and absolute, why is there a 1/3 cowitness to begin with? I have a 1/3 AMD mount and the dot is obviously in the lower 3rd of the optic. What is the advantage to a 1/3 versus an absolute or vice versa? Blackfly, I believe the 1/3 cowitness will give you a larger FOV over the absolute. Especially if you have a fixed FSB. But hey, I think it's just personal preference. Shooting with both eyes open with the EoThingy and AP's, I think FOV is a moot point IMHO. |
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So to clarify, which mounts will allow give you an absolute co-witness with a Aimpoint M4s? I looked at the Aimpoint factory M4 mount and didn't care for the big nut/screw on the side. I have a Larue DMR upper with a fixed front sight and Larue BUIS. I want an absolute co-witness, don't like the 1/3. Thanks for the help, Nick- |
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I went back to absolute 'cause with the Aimpoint mounted but off, I shoot the irons better than with the lower 1/3 mounts. I find myself shooting more accurately with irons too. I tried putting the red dot on top of my f/sight and found I was shooting high and right. I guess YMMV, but I was pretty much dead on with irons. I use a 50 yard BZO. |
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Quoted: Quoted: Thank you very, very much! Actually the second pic tells me everything I wanted to know. I'm still undecided but I am better informed now. Tough decision for me, because no matter which company you choose for the mount, they are all damn expensive! Gotta make sure I get the right one to begin with Quoted: Quoted: When I bought the LaRue AP M4s, the tall mount is what I ordered. Honestly, the 1/3rd cowitness is all I know. Someother member will probably chime in and give you his imput on a absolute cowitness. But getting back to mounts, I have shot about 5K rounds on my rifle/optic setup, and each time I take my optic off and put back on, my zero is right where it should be..maybe just a hair off. Good mounts do that for you. Just make sure you put it back exactly where it was zeroed. http://i48.tinypic.com/2enrr42.jpg To the poster above......did you know your mount is backwards??? It doesn't make much difference, but the "cantilever" portion is meant to be out over the barrel nut. Just thought you might want to know. If you already knew, then pardon me for butting my nose in. Yup, I screwed up when I first got the sight....here's a more recent pic. Thanks! http://i48.tinypic.com/2nu1sp5.jpg 1098cya, would you mind taking a picture of your sight picture through the aimpoint and posting it up here? I am seeing a bunch of pictures online of the Aimpoints with the absolute co-witness but very few if any with the 1/3 co-witness (with the sight turned on). If you could set it up so that the front sight is up and the rear one is down that would be great! I'm running a fixed FSB and a BUIS on my 16" middy build, so this would give me an accurate idea of what it will look like. Thanks a bunch! Mike There's alot of FAIL in these pics, but it's the best I can do. Don't know why the red dot is transparent and HUGE, but you get the idea...I hope. http://i45.tinypic.com/30tq836.jpg http://i48.tinypic.com/9tcqdl.jpg  One more quick question though for you guys. At the power setting 7 on the Aimpoint M2/M3, is the red dot about twice the size as the front sight post? I would def want it to be larger than the front sight post if I run an absolute co-witness, because otherwise it might be more difficult to see the dot amidst all the clutter. 1098cya, you have an Aimpoint M4 and the dot it projects appears to be about twice the size of the front sight post. I would assume this would be different with the Aimpoint M2/M3 sights, which is why I am concerned about it. Mike |
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NW, I gotta say LaRue. Too much kool aid I guess, but if you go with the short mount, that will give you your absolute cowitness. Check with LaRue. It was designed in mind with the HK 416. NO NO NO.....the short (LT-649-HK) M4 mount will NOT give you absolute co-witness. The "short" mount was designed for the HK 416 and is WAY to low for standard AR co-witnessing. Larue makes 3 different height mounts. The LT-659 (tall) is for lower 1/3. The LT-659-NV is for absolute co-witness. |
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NW, I gotta say LaRue. Too much kool aid I guess, but if you go with the short mount, that will give you your absolute cowitness. Check with LaRue. It was designed in mind with the HK 416. NO NO NO.....the short (LT-649-HK) M4 mount will NOT give you absolute co-witness. The "short" mount was designed for the HK 416 and is WAY to low for standard AR co-witnessing. Larue makes 3 different height mounts. The LT-659 (tall) is for lower 1/3. The LT-659-NV is for absolute co-witness. My bad....the NV is for absolute. I stand corrected. Again. |
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[quote
1098cya, you have an Aimpoint M4 and the dot it projects appears to be about twice the size of the front sight post. I would assume this would be different with the Aimpoint M2/M3 sights, which is why I am concerned about it. Mike, [/quote] Mike, I have the AP M4s, which has the battery box at the 5 o'clock position. The M4 has the battery box up top at the 2 o'clock position. Just battery box position is the only difference with the two. At power setting 7, the 2MOA dot is faint and visible, but nowhere near twice the size the tip of my f/sight post. That's why the photo I took for you is misleading. The M4s dot is not that large at all. It, if anything is about the 1/2 the size of the tip of the f/sight. Maybe a tad smaller. I believe the M2 AP has a larger 4MOA dot and the M3 has a smaller, like my M4s 2MOA dot. As you dial up the power setting, the dot grows larger and of course brighter, but it doesn't get twice the size as the tip of the f/ sight post. The M2 with the 4MOA dot probably would. Some members like me, prefer the smaller 2MOA dot, because at longer distances, say 100 yrs and beyond, the dot would not completely cover the target. Check them both out. See which one fits your shooting style 
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NW, I gotta say LaRue. Too much kool aid I guess, but if you go with the short mount, that will give you your absolute cowitness. Check with LaRue. It was designed in mind with the HK 416. NO NO NO.....the short (LT-649-HK) M4 mount will NOT give you absolute co-witness. The "short" mount was designed for the HK 416 and is WAY to low for standard AR co-witnessing. Larue makes 3 different height mounts. The LT-659 (tall) is for lower 1/3. The LT-659-NV is for absolute co-witness. My bad....the NV is for absolute. I stand corrected. Again. I didn't mean any offense, I just didn't want the guy going straight to the Larue site and ordering the wrong one. Its all good.
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NW, I gotta say LaRue. Too much kool aid I guess, but if you go with the short mount, that will give you your absolute cowitness. Check with LaRue. It was designed in mind with the HK 416. NO NO NO.....the short (LT-649-HK) M4 mount will NOT give you absolute co-witness. The "short" mount was designed for the HK 416 and is WAY to low for standard AR co-witnessing. Larue makes 3 different height mounts. The LT-659 (tall) is for lower 1/3. The LT-659-NV is for absolute co-witness. My bad....the NV is for absolute. I stand corrected. Again. I didn't mean any offense, I just didn't want the guy going straight to the Larue site and ordering the wrong one. Its all good. None taken. Learning curve for me too. Thanks for your good info. 
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NW, I gotta say LaRue. Too much kool aid I guess, but if you go with the short mount, that will give you your absolute cowitness. Check with LaRue. It was designed in mind with the HK 416. NO NO NO.....the short (LT-649-HK) M4 mount will NOT give you absolute co-witness. The "short" mount was designed for the HK 416 and is WAY to low for standard AR co-witnessing. Larue makes 3 different height mounts. The LT-659 (tall) is for lower 1/3. The LT-659-NV is for absolute co-witness. My bad....the NV is for absolute. I stand corrected. Again. I didn't mean any offense, I just didn't want the guy going straight to the Larue site and ordering the wrong one. Its all good. None taken. Learning curve for me too. Thanks for your good info.
Cool.
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Quoted:
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NW, I gotta say LaRue. Too much kool aid I guess, but if you go with the short mount, that will give you your absolute cowitness. Check with LaRue. It was designed in mind with the HK 416. NO NO NO.....the short (LT-649-HK) M4 mount will NOT give you absolute co-witness. The "short" mount was designed for the HK 416 and is WAY to low for standard AR co-witnessing. Larue makes 3 different height mounts. The LT-659 (tall) is for lower 1/3. The LT-659-NV is for absolute co-witness. Thanks for the help!! Nick- |
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