ARMS #40 and #40L questions

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[ARCHIVED THREAD] - ARMS #40 and #40L questions

Posted: 2/21/2007 3:20:23 PM EDT

For each of these, which aperture is in position when the sight is flipped up?

I heard the the #40L flips up with the small aperture in place, and the #40 flips up with the large aperture in place, is that correct?

Thanks.

Posted: 2/21/2007 3:41:38 PM EDT

[#1]

Yes, the 40L flips up with the small ap. in place. Not sure about the other.

Posted: 2/21/2007 5:19:57 PM EDT

[#2]

Quoted:
....and the #40 flips up with the large aperture in place, is that correct?

Thanks.

Correct.

Posted: 2/21/2007 7:08:33 PM EDT

[#3]

Thanks for the answers guys.

Posted: 2/22/2007 12:58:59 PM EDT

[#4]

I just recieved my ARMS 40 and put directly on flat top behind my Eotech. I dont know how I lived without it. All the debate about cowitness, or positioning in lower 1/3 etc. I am glad to say was irrelevant once I actually had the site on my rifle. While I likely will leave it down, co-witnessing is not as distracting as I had envisioned.

Happy camper here.

bigtwinhog

Posted: 2/25/2007 12:02:33 PM EDT

[#5]

This thread may have saved me from another expensive experiment. I thought that the L in 40L referred to "low" . My present BUIS has 2 apertures and I was thinking that the ARMS was the same. Now I'm getting that the #40L has only the smaller aperture in it and the #40 has only the larger aperture. Is that correct? I was thinking about the ARMS because the BUIS that I chose is a little close to the rear of the Eotech. How much room is there on the setup that you have?

Posted: 2/25/2007 12:48:06 PM EDT

[#6]

The #40L is a low-profile. Both of them have two apertures. The difference is that when you flip up the #40L the small aperture will be in place, and when you flip up the #40 the large aperture will be in place.

I was asking because I prefer the large aperture and didn't want to have to change the aperture every time I flip the sight up.

Posted: 2/25/2007 12:49:31 PM EDT

[#7]

No that is not correct. The 40 has both apertures but the default is the large aperture. The 40L also has both apertures with the default as the small aperture.

I use a 40. The sight can only be lowered & locked with the site in large aperture position. Personally I prefer this set-up.

So far the 40 has been rock solid & holds zero perfectly. With both my EOTECH & my M2 with Arms base & full spacer co-witness perfectly.

Posted: 2/25/2007 12:53:01 PM EDT

[#8]

I was asking because I prefer the large aperture and didn't want to have to change the aperture every time I flip the sight up.

Yup, me too. I wanted a sight that works more like a ghost ring rear at close range. Have you seen the #40L-SP? Would that be closer to what we were looking for?

Posted: 2/25/2007 1:23:54 PM EDT

[#9]

Quoted:

I was asking because I prefer the large aperture and didn't want to have to change the aperture every time I flip the sight up.

Yup, me too. I wanted a sight that works more like a ghost ring rear at close range. Have you seen the #40L-SP? Would that be closer to what we were looking for?

I think so; On their website is says you can remove the small aperture if you want the large one only.

Posted: 2/25/2007 1:57:59 PM EDT

[#10]

Indeed, but they don't tell you how. I've Been looking at mine and can't figure it out.

Posted: 2/25/2007 2:12:13 PM EDT

[#11]

Quoted:
Indeed, but they don't tell you how. I've Been looking at mine and can't figure it out.

I'm glad it's not just me. I was reading someones post that was asking how to flip his apertures over. It was a queestion of use a larger hammer. No one told him they were tight as they were. I could see me posting the same kind of question. I pay a lot of money (for me anyway) for a sight and the mfgs. toss it into a padded mailer or ziplock baggie and rush off to cash my check. I don't know how I'd be doing if I hadn't found this forum.

When you find out about removing the aperture, let us know. It'll save me having to ask, and probably a lot of others too.

[ARCHIVED THREAD] - ARMS #40 and #40L questions

AR-15 » Optics, Mounts, and Sights

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