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Posted: 12/9/2003 9:24:32 PM EDT
I have an M4 and am going to be buying an Aimpoint M2.  I have the flat top, and need some advice on a good way to mount it.
I was thinking of the Arms mount 22M68, and after that dont know.  Will I need the spacer to be able to use the iron sights?  And also, I need a good rear iron flip up sight that will work with the front sight.  Any good affordable setup idea from you guys...Thanks...
Link Posted: 12/9/2003 9:29:45 PM EDT
ARMS #22M68 with full spacer in front of a #40 flip sight.
Link Posted: 12/9/2003 9:38:23 PM EDT
Combat_Jack gives you a good advice, except I'd go for cantilever spacer if I could start over.
Link Posted: 12/9/2003 9:43:33 PM EDT
Cantilever spacer looks good, escept its $23 more.
Link Posted: 12/9/2003 9:43:36 PM EDT
[Last Edit: 12/9/2003 9:45:24 PM EDT by sblackhawk]
So, I dont need a swan sleeve, or another long  rail to raise the #40 flip up iron sight up to the level plain as the front sight is on the rifle. This will work straight on to my  rail on my rifle...
Link Posted: 12/9/2003 9:55:34 PM EDT
Yeah, the #40 is made to be mounted to the rearward most rail of your flat top. It will be at presicely the correct height. So will your Aimpoint if you use either of the two spacers available for the #22M68 ring you are looking at. Personally, I think the extended spacer is worth the extra $20 beans!
Link Posted: 12/9/2003 10:43:28 PM EDT
Originally Posted By new-arguy:
Yeah, the #40 is made to be mounted to the rearward most rail of your flat top. It will be at presicely the correct height. So will your Aimpoint if you use either of the two spacers available for the #22M68 ring you are looking at. Personally, I think the extended spacer is worth the extra $20 beans!
View Quote


Yup. Another option is the Mil-spec QRP Rail grabber.
Link Posted: 12/9/2003 10:55:10 PM EDT
[Last Edit: 12/9/2003 10:55:38 PM EDT by Lumpy196]
Originally Posted By Combat_Jack:
ARMS #22M68 with full spacer in front of a #40 flip sight.
View Quote


Yup, with the addition of the cantilever spacer:

[img]http://www.imagestation.com/picture/sraid91/p93b9d1961ff9c540fada6de24683fe62/fa5d9562.jpg[/img]
Link Posted: 12/9/2003 10:56:32 PM EDT
The #22M68 w/ cantilever spacer and #40 is one hell of a setup.  It served me very well as an intermediate setup on my rifle (which is why ARMS stuff is so damn cool--the modular approach allows for upgrades).  I think you'd be extremely pleased with that setup.  Good luck!
Link Posted: 12/9/2003 11:07:09 PM EDT
Thanks guys, for the info and the picture.  I have been getting quotes for these items as we are speaking. A bunch of good guys and dealers on the forum.............
Link Posted: 12/10/2003 2:04:53 AM EDT
Im a KAC fan and dont really like ARMS.  Thus Im running a KAC 300m BUIS and KAC Cantlever Aimpoint mount.
Link Posted: 12/10/2003 6:26:30 AM EDT
[Last Edit: 12/10/2003 6:27:04 AM EDT by glock23c]
I use the ARMS 22M68 and the extended mount, also.

[img]http://photos.imageevent.com/brobert/ar15//websize/DSC00021.JPG[/img]
Link Posted: 12/10/2003 6:31:31 AM EDT
Yep, another vote for the 22M68 with cantilever.  I had the standard spacer and swapped it out (thanks to strazz!) with a cantilever and like the setup MUCH better.
Link Posted: 12/10/2003 9:41:21 AM EDT
I love my 22m68 with cantilever spacer.  Good friend of mine has the GG&G but I don't think it is worth the price difference. After comparing mine and his I have had three friends get the 22m68.
Link Posted: 12/10/2003 9:47:28 AM EDT
KAC setup looks great I use the KAC 300m BUIS and KAC Cantlever mount.

Clinth
Link Posted: 12/10/2003 11:07:37 AM EDT
Originally Posted By PSYWAR1-0:
Im a KAC fan and dont really like ARMS.  Thus Im running a KAC 300m BUIS and KAC Cantlever Aimpoint mount.
View Quote


Another good choice.  Ive used both.
Link Posted: 12/10/2003 11:30:13 AM EDT
Originally Posted By BookHound:
Yep, another vote for the 22M68 with cantilever.  I had the standard spacer and swapped it out (thanks to strazz!) with a cantilever and like the setup MUCH better.
View Quote


I'm glad it found a good home!  One spacer, two convinced customers [:D]
Link Posted: 12/10/2003 11:56:41 AM EDT
I got a good deal on a GGG cantilever and have had good luck with it.  It has a spare battery/cap on the side and the thumbwheel is secure and fast.  It also puts the sight a touch more fwd than the ARMS, but both are great.  

I don't like to shove a bunch of heavy batteries in every grip and stock hole on the rifle, but one little Aimpoint batt is nice and easy to get.
Link Posted: 12/10/2003 3:09:28 PM EDT
[Last Edit: 12/10/2003 3:15:13 PM EDT by Tree-Rat]
More questions........

Will the ARMS #38 extended rail put the Aimpoint forward the same amount as the Cantalever spacer?

Are Glock23C and Lumpy's rigs M-4 handguards and two piece KAC RAS?


TR
Link Posted: 12/10/2003 5:41:50 PM EDT
[Last Edit: 12/10/2003 5:43:58 PM EDT by MSTN]
Link Posted: 12/10/2003 6:53:54 PM EDT
Originally Posted By Tree-Rat:
More questions........

Will the ARMS #38 extended rail put the Aimpoint forward the same amount as the Cantalever spacer?

Are Glock23C and Lumpy's rigs M-4 handguards and two piece KAC RAS?


TR
View Quote


Tree Rat,

Yes, my rifle has the M4 handguards on it.  I am not familiar enough with the RAS type systems to know what Lumpy's rifle has on it.  Wish I knew more about them.
Link Posted: 12/10/2003 6:59:40 PM EDT
Yes, my handguards are the KAC RAS.
Link Posted: 12/10/2003 7:37:45 PM EDT
I also use the KAC cantilever mount with the Kac 300 meter buis. I also have the Arms#40 which is the best back up site.
Link Posted: 12/10/2003 8:27:41 PM EDT
You can also go with the 22M68 with cant spacer and a GGG mad flip site. I have used all of the different set ups and find I get much faster hits with the GGG mad.
Link Posted: 12/10/2003 9:04:35 PM EDT
The standard width of the military's rear sight aperatures is narrow to allow for fast target aquistion. With a mad being aprox. 3 times wider, it slows down the ability to engauge tagets rapidly as it is like trying to peek thru a hole in a wall untill yo find the target, very slow.  The genuine current issue military rings for Aimpoints all put the optic at a specified ht., therefore any gov't issue rear iron sight is also to the mil spec., and  will be at the correct ht. to co-witness with an Aimpoint since it is held by the mil spec ring.
Jack
Link Posted: 12/10/2003 10:09:48 PM EDT
Link Posted: 12/11/2003 3:38:52 AM EDT
Nice set-up to be sure but still wonder.....

What set-up puts the Aimpoint farther forward, the Cantelever spacer or #38 ARMS EX rail?

TR
Link Posted: 12/11/2003 6:53:15 AM EDT
The ARMS #38s-ex was designed to get the Aimpoints, etc. out to the furthest position and that gives the widest field of view plus the fastest in multible targeting. The 22M68 is my 1st choice for the ring and no spacer would be needed on the #38.
Good shootin, Jack  
Link Posted: 12/11/2003 7:07:41 AM EDT
[Last Edit: 12/11/2003 7:09:26 AM EDT by Rhainan]
ARMS #40, #22M68 with full spacer.  I just put this together and I find that when the irons are flipped up, they sit a little low in the Aimpoint sight.  Is this how it is with everybody else?  I went from an Eotech to this setup and it seemed that the Eotech sat lower.  The irons are still quite usable, but I have to drop my cheek lower to access it.  Should I have gone with the half spacer?

[img]http://www.imagestation.com/picture/sraid92/pd415c2a20e0c8cdbba940c324f41a06e/fa53befb.jpg[/img]
Link Posted: 12/11/2003 11:39:24 AM EDT
That's the right height.  That way, you can look over your sights to use the Aimpoint, or just drop your head down slightly if you need the irons.  It provides more usable cheek positions, which allows you to get on target more quickly from a low ready.  With this height, you can take advantage of the entire area of the lens.  I know a few people who have mounted theirs without a spacer and I find it to be absolutely intolerable.  If I hadn't gone with a SIR, I would have rather had the LMT rear sight.  
Link Posted: 12/11/2003 12:42:31 PM EDT
The mil std. ht. of the Aimpoint red dot has to be higher that way since the dot can float into the front iron if you were not using a cheek weld, like what can happen in combat and you don't have time to get a comfy cheekweld.
There is no way that a cheek weld is dif. from the Eotech to iron and or Aimpoint, just and  your eye ball and instinctive head nod.
Good Shootin, Jack
Link Posted: 12/11/2003 4:31:14 PM EDT
Originally Posted By Tree-Rat:
What set-up puts the Aimpoint farther forward, the Cantelever spacer or #38 ARMS EX rail?
View Quote


I started off with the #38ex and switched to the cantilever spacer. Going from memory, both are about equal in terms of forward Aimpoint placement.

One disadvantage of the #38ex (for me anyways) is that you can't get the handguards off without removing the Swan Sleeve. Not terrible, but it was a deal breaker.
Link Posted: 12/24/2003 11:07:17 AM EDT
I would like to thank all of the forum members who responded to my post.  I have since ordered and put on my M4, the Comp ML2, #40 BUIS, #22M68, with cantalever spacer.
I am very satisfied with this etup, and am in the process of setting up my next preban AR15.

I have a preban with the fixed handle AR, and need a pic rail for it.  I think I am going to go with the Arms #39 setup.  Will this fit without any tooling or modifications on my fixed handle A2 gun?????
Link Posted: 12/24/2003 11:59:51 AM EDT
Link Posted: 12/30/2003 5:02:54 PM EDT
So, say you want to mount an aimpoint on one of the SIR 45?  You wouldn't need a spacer to keep things co-witnessed?  

What if you had the 50 where they've dropped the front portion of the rail a little bit?  I'm trying to decide what model SIR to buy and I was thinking of the 50 so it can co-witness with the EOtech, but how do I make it work with the Aimpoint?
Link Posted: 12/30/2003 8:19:04 PM EDT
If you put an Aimpoint out front, then you simply put in the full spacer.
Good shootin, Jack
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