Holosight for my Bushmaster

[TFox2112]

I bought a bushnell holosight for my Bushmaster (XM15-E2S M4-A3), but before I put it on the rifle, I noticed that the front sight will be in the sight picture. Anybody know whether or not this will affect the performance of the holosight?

[m25operator]

I don't know which holosight you have, I know there is a new one that is very low to the mount. I mounted an eotech on my a3, and it was'nt the front sight that bothered me, but my cheek pressing hard into the buttstock to get a good sight picture, I added and 1/2" riser and now it's good. I'm aware of the front sight, but it's not in the way.

[USSA-1]

It will have no effect on the performance of the scope.....although is may affect your performance using the scope.

There are several companies that make mounts that will slightly elevate the scope off the receiver.  I've had good success with the Rock River dominator mount.

http://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=318

Erik

[TFox2112]

USSA-1,
I tried it out on the rifle today, and it actually puts the circle/dot right on top of the front sight, as if it was designed to be that way. I almost think I like it as it sits, but I ordered a YHM 1/2" riser just in case. Thanks for the input. Also got the quad rail put on. all I need now is the light mount and I think I will be good to go.

[kmitch200]

USSA-1,
I tried it out on the rifle today, and it actually puts the circle/dot right on top of the front sight, as if it was designed to be that way. I almost think I like it as it sits, but I ordered a YHM 1/2" riser just in case. Thanks for the input. Also got the quad rail put on. all I need now is the light mount and I think I will be good to go.

If the dot will cowitness the iron sights, you don't need a riser!!!
The riser is needed if you can't get a decent sight picture when mounting the gun.
Like m25 said - he needed to mash his cheek into the stock. It sounds like you don't have this problem.

[Sponsor]

[someguy]

TFox -

It WAS designed to be that way.  Obviously, you don't have to use it that way, but co-witnessing with your iron sights is the point of the design.  That way, your cheek weld, aiming technique, etc. is always the same, even when the batteries die...  Which they will, at the least opportune time.

[gunman42782]

I have a holosight on my M4gery and I did not like being able to see the front sight, so I swapped the gas block and put on a flip up front sight.  I like that arrangement much better.  Some folks like to co-witness the sights, but it was distracting as heck for me. 

[Bill Stryker]

I have a Rock River with the Dominator and a Bushnell Holosight on it. The holosight and the iron sights are sighted in to same point of aim.  My battery ran out in the middle of a match,  so it was a good thing to be able to use the iron sights with out a hitch. 

No, I am not competitive in these bullseye matches, most use big scopes. The scope size limit is 6x when shooting the matches at our club. As one of the returned designated marksmen guys pointed out to me the dot on the holosight at 100 yards is larger than the 9 ring! Batteries run out and in the middle of a match you do not have time to change them. Yes, I do carry spares all the time.

So, the solution for next season is to mount a scope.

On my way to Camp Perry this week! But not to shoot. I like to visit Commercial Row and talk to all the experts from all the vendors.

[Big Frank]

I have a scope on one of my ARs and the front sight was really in the way. I cut it off with a hacksaw and filed and sanded it smooth. A little touch-up bluing and a free-float tube over it, problem solved, it's invisible. I would do it again if I bought another flat-top. I don't have a scope on my CAR-15 and will never buy another one that mounts on the carrying handle. So now I have both a long range and a short range AR. That's easier for me than trying to make one rifle/carbine fit both roles.