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Posted: 9/15/2005 9:42:42 AM EDT
| I want to get a EOtech but I am worried That my front sight is going to be in the way. I can't remove the front sight and replace with a new gas block type because I had Adcoc shorten my barrel and perm. install a flash hider. So I want to know from the guys with eotechs if it's a problem? Thanks |
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The front sight post will not be a problem for you. Just keep both eyes open when you shoot, and focus on the target. As only one of your eyes will see the eotech reticle you will only see the one dot. As for removing hte front sight base, you have several options. There are folding front sights that can fit over chopped towers (see bushmaster). There are also rails that fit over them too. There are also two piece gas blocks that can camp on (see here). I actually cut off my whole gas block and tower and replaced it with a PRI flip site. I just unpined the existing, moved it over to the notch in my barrel and then dremil'd it off (no guts, no glory). I then bent the arms of my PRI just a bit to fit over the flash supressor and install it in place. Just do it.  
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I was like you, and thought it would be a HUGE deal to have a front sight in my sight picture while using the Eotech. I went WAY out of my way and installed a three-rail gas block with a front flip sight, so I could fold it out of the way while using the Eotech. Well, after I modified TWO of my ARs in this configuration, I realized this was pointless, because now I ALWAYS keep my sights flipped up and just "see through" the irons and focus on the reticle. The irons just ghost away in my sight picture, and don't "get in the way" at all. Basically I wasted a bunch of money and time when I should have just stayed with the stock FSB. ETA: I like co-witnessing the sights. Just because they're co-witnessed doesn't mean you have to USE your irons. The neat thing about the Eotech is that it works anywhere in the glass, not JUST the middle. So, you can look over the irons, or just not worry about lining up your irons for quick work. I recommend trying one out before you spend all the money to fix a non-existent problem. Here's what I've got:  and:  My two latest ARs both have stock FSBs on them, and will stay that way. |
| Thanks guys. I think I will just try it out and see. I was just worried that it would be in the way and I wouldn't be able to see what I was shooting. I think I will also get a flip up rear sight like dragonfly228 has. I have to stop looking at pictures of everyones guns. Everytime it cost me more money. |
Here's a new one I took 10 minutes ago. I'm aiming at a sign, but it's covered up by some branches and you can only see the sign post on the left side of the front site post. IIRC, the sign(treeline) is about 94yds from my position. The front site is not a big deal at all. I also have an ARMS #40 flip-up rear site. It's really handy for keeping the EOTech window un-cluttered while doing a little casual plinking. WIZZO |
The ARMS 40 is another cool thing. This is a bit off topic, but I notice that if I hold the top of the "horizon line" of the small aperature sight to the top of the front sight post. making it all level like a pistol sight / pitch fork, I get POI = POA for ranges 50' or less. This is really cool if you want to make a precise shot without having ot guestimate hold over height.
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I pretty much do the same thing. I "co-witness" my eotech right on top of my front sight post and use my BUIS (large aperture) as well. It works well for me from 10 feet out to 100-125 yards so I am not really concerned if it is "technically" correct or not.  Cavu |
It isn't whether you should or shouldn't. It just isn't necessary. When sighted in properly the point of impact is where the dot is, irrespective of the iron sights. |
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Combat_Diver I noticed you have EOTech mounted on the fore-end of the M4. I was wondering if it would hold a Zero mounted in this fashion. Also if you are having good results, what brand of fore-end do you have? The reason I ask is because i am thinking about doing the same thing. |
I've got my Eotech mounted on the rail of my Daniel Defense 9.5. It holds zero because the tube is locked in place by two pins. The rail is also extremely lightweight. |
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It holds zero firmly, this is it's second deployment. Its a ARMS SIR #50SC which has three locking bars for the top of the reciever and a collar that slips under the delta ring which then has 4 screws securing it down. Anything mounted on top rail or forward rail is solid. Haven't heard of any IR lasers losing their zero on the sides either. CD |
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Instead of starting a new thread, this looks like a good place to ask this question: Eotech and Front Sight AND Rear Sight Anyone running their rifle with fixed front AND fixed rear sights (like LMT or Larue) fixed rear BUIS along with a reflex sight (like Eotech or Aimpoint)? I can see where the front sight would be focused out, but how about the rear? I have seen plenty of Spec Ops rifles in the field set up this way but have never tried it myself. |
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I have a standard A2 upper one peice carry handle. I also have The EOTECH HWS. Mine is mounted on a drop down rail ( www.benniecooley.com ) which attaches to the carry handle. The HWS sets between the front and rear sights and directly over the fore-end. I leave the large aperture up and use the sights as normal. When the Eotech is turned off, I close the left eye. When the Eotech is turned on, I leave both eyes open. With both eyes open the rear sight becomes a ghost and the front sight is more of a shadow. Your eye picks up the red light of the HWS and seems to ignore the iron sights. You can also raise your head up slightly and look right over the top of the sights when using the Eotech. |
Wouldn't that tend to slow you down? |
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C4, I had the same problem. I ended up cutting my FSB off with a dremel tool and putting on a two piece gas block. I use a folding flip front sight and a YHM Eotech riser. With the sight up it's in the lower 1/3 of the eotech window. I recently posted pictures in this thread: www.ar15.com/forums/topic.html?b=3&f=18&t=250482 Wedge |
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