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Posted: 5/18/2005 1:57:48 PM EDT
I did a search and couldn't find anything on this. I want to mount an aimpoint on my A2, I have the YHM handguard on it, would the gooseneck mount be high enough to co witness my irons?
Link Posted: 5/18/2005 2:56:29 PM EDT
Link Posted: 5/18/2005 3:24:56 PM EDT
[Last Edit: 5/18/2005 3:25:20 PM EDT by AR-M9]
Are you asking about a cantilever mount to attach to the YHM handguards, or a gooseneck to mount to the carry handle?
Link Posted: 5/18/2005 3:30:36 PM EDT
Opps sorry, cantilever I mean.
Link Posted: 5/18/2005 3:34:21 PM EDT
[Last Edit: 5/18/2005 3:35:05 PM EDT by AR-M9]

Originally Posted By prone:
Opps sorry, cantilever I mean.

Are your YHM handguards free floating or 2 piece?

I -think- YHM handguards are the same height as the receiver's rail (someone else could confirm that), so you could use any normal Aimpoint mount (LaRue, ARMS, etc.).

But if you have a 2 piece handguard it might not be the best to mount an optic to it, any movement in the rail and you lose your zero. My YHM 2 piece was pretty tight, but there was some play when pushing or twisting them so I wouldn't mount an optic to it.

On the other hand, if they are free floating you are good to go.
Link Posted: 5/18/2005 3:48:44 PM EDT
[Last Edit: 5/18/2005 3:49:45 PM EDT by prone]
They are free floated. So the standard cantilever mount will co witness with the A2 carry handle?
Link Posted: 5/18/2005 3:49:21 PM EDT

Originally Posted By AR-M9:

Originally Posted By prone:
Opps sorry, cantilever I mean.

Are your YHM handguards free floating or 2 piece?

I -think- YHM handguards are the same height as the receiver's rail (someone else could confirm that), so you could use any normal Aimpoint mount (LaRue, ARMS, etc.).

But if you have a 2 piece handguard it might not be the best to mount an optic to it, any movement in the rail and you lose your zero. My YHM 2 piece was pretty tight, but there was some play when pushing or twisting them so I wouldn't mount an optic to it.

On the other hand, if they are free floating you are good to go.



I agree totally with this. I have the 2-piece handguards and although they are pretty solid, I wouldn't mount an optic to it. As far as the height on the rails, here is a pic of the rails and the flattop

Link Posted: 5/18/2005 3:50:50 PM EDT
Nice looking dog, and gun. I don't have the detachable carry handle though.
Link Posted: 5/18/2005 4:45:20 PM EDT
[Last Edit: 5/18/2005 4:50:29 PM EDT by AR-M9]

Originally Posted By prone:
They are free floated. So the standard cantilever mount will co witness with the A2 carry handle?

What do you mean when you say "standard cantilever mount"?

The LaRue and ARMS cantilever mounts will work for you, they will make it so that the iron sights show in the lower third of the Aimpoint's window.

If the standard mount you are talking about is that cantilever mount with the hex nut tightening it to the rail, I am not sure of the height, but I assume it will cowitness as well.
Link Posted: 5/18/2005 6:33:15 PM EDT
Well, the point is mute, I ordered a CMT upper reciever from C4iGrant tonight. Thanks for all the input guys.
Link Posted: 5/18/2005 9:29:21 PM EDT

But if you have a 2 piece handguard it might not be the best to mount an optic to it, any movement in the rail and you lose your zero. My YHM 2 piece was pretty tight, but there was some play when pushing or twisting them so I wouldn't mount an optic to it.

On the other hand, if they are free floating you are good to go.



I'm curious, aren't the KAC M4 and M5 RAS non-free float? If that is the case, why does the military mount optics on them. I have seen photos with Aimpoints mounted on the KAC RAS. This is not a flame, I am just curious.
Link Posted: 5/19/2005 4:48:20 AM EDT
Link Posted: 5/19/2005 11:48:39 AM EDT

Originally Posted By ComputerGeekGunFreak:

But if you have a 2 piece handguard it might not be the best to mount an optic to it, any movement in the rail and you lose your zero. My YHM 2 piece was pretty tight, but there was some play when pushing or twisting them so I wouldn't mount an optic to it.

On the other hand, if they are free floating you are good to go.



I'm curious, aren't the KAC M4 and M5 RAS non-free float? If that is the case, why does the military mount optics on them. I have seen photos with Aimpoints mounted on the KAC RAS. This is not a flame, I am just curious.

To be honest, I've never seen optics mounted on KAC's in military photos. Most of the time when I see a a mil. photo with a KAC it will be on an A4 with flat top.

Like mentioned above, at close range the loss of zero won't hurt you too much, but it's not something I would want to risk. The M5 is also VERY expensive and high quality, while the YHM (altho I like them a LOT) aren't up to that level IMO.
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