Would these have an issue if the front sight is to be mounted on a gas block? Or would they melt? Also, will these work for a flat top AR?
189367
I mounted mine on my flat top, and to the handguard mount, not the gas block. I have not had any issues with sighting in or holding a zero.
189368
These will not work for a flat top AR. Product description clearly states, "Profile Designed for Installation on Gas Block." I failed to heed this warning, purchased the set for my Mossberg MMR tactical with flattop picatinny upper, and they do not work. The front sight cannot be adjusted high enough to get a straight shot.
189369
These do work very well for a flat top. I wouldn't mount it directly on the gas block. It's designed to be mounted on a picatinny rail system.
189370
Have a DPMS flatop and low profile gas block. Though I run a Piston. They have to be slid on from the end they fit snug. The lined up perfect with my 40mm red dot in between. When down they do not interfere with the Red dot. I don't think the Gas block would generate enough heat to melt these.
189371
I shoot a rock river arms mar 15 as heavy barrel. These sights mounted on my flat top the poi is 19" higher than the poa at 50 yards. On a gas block I would imagine you would be hitting birds.
1302188
this Front Sight will only work if you have a Full Leanth Quad Rail on your AR-15 rifle.or if you have a Standard Heighth Picatany Gas Block.but the answer to your Question. any Rear sight will work with this front sight. just as long you put it on the standard Gas block or the quad rail. if you put this sight on the low pro gas block it wont work with any rear sight.
130579
Kind of depends on your rails. I'm not sure about this combination, but when they are wrong it is about 1/8" off on the height which is pretty obvious. My front sight mounted on the gas block which I think made it too high so I had to get a lower version. I think if your rails are the same height front and rear they work together. I don't have my rifle in front of me.
983996
Flip your rifle over. If the two lay flat then no. If they are flat you can use any standard hight front sight. This sight is for the lower gas block. Roughly 1/4 inch lower than the upper rail.
1289895
Absolutely not! I bought a pair and my gas block is approximately 3/16" lower than than the receiver rail and, after trying all adjustments possible, I could not even come close to getting any type of accuracy alignment I then tried user a 1/2" riser on the gas block and the same problem arose due to the front now being higher! The gas block and receiver rail MUST be virtually 100% identical in height!
608293
I couldn't honestly tell you if it will clear a "triangle gas block" cause all I can think of as a triangle gas block is the front sight and gas block in one. If that's what you have I again couldn't speak to the compatibility of this scope mount with a actual front sight seeing as I have a flat top. I would how ever recommend a 45 degree off set scope mount if you have a front sight, and add a rear sight and your red-eye to engage down range as most any distance. If I hadn't gotten the flat top that would have been my set up of choice. Happy trails and may your bullets always go bang. I couldn't honestly tell you if it will clear a "triangle gas block" cause all I can think of as a triangle gas block is the front sight and gas block in one. If that's what you have I again couldn't speak to the compatibility of this scope mount with a actual front sight seeing as I have a flat top. I would how ever recommend a 45 degree off set scope mount if you have a front sight, and add a rear sight and your red-eye to engage down range as most any distance. If I hadn't gotten the flat top that would have been my set up of choice. Happy trails and may your bullets always go... » Read More I couldn't honestly tell you if it will clear a "triangle gas block" cause all I can think of as a triangle gas block is the front sight and gas block in one. If that's what you have I again couldn't speak to the compatibility of this scope mount with a actual front sight seeing as I have a flat top. I would how ever recommend a 45 degree off set scope mount if you have a front sight, and add a rear sight and your red-eye to engage down range as most any distance. If I hadn't gotten the flat top that would have been my set up of choice. Happy trails and may your bullets always go bang. « Show Less
805700
Absolutely. That's what I'm running right now. I have a railed gas block and the original and gen2 Mbus sights are not compatible as they are primarily polymer and will eventually melt on the railed block. The Pro series is all metal and is safe for use on the railed block. The gen2 Mbus rear I have lines up perfectly and saved me a good deal of money over buying the Pro rear. Note however that the Pro series are not "pop up" sights and must be flipped up manually. I'm currently running the gen2 mbus rear, the pro front, and both are co-witnessed with my Vortex Sparc II red dot. Very happy with the set up. Absolutely. That's what I'm running right now. I have a railed gas block and the original and gen2 Mbus sights are not compatible as they are primarily polymer and will eventually melt on the railed block. The Pro series is all metal and is safe for use on the railed block. The gen2 Mbus rear I have lines up perfectly and saved me a good deal of money over buying the Pro rear. Note however that the Pro series are not "pop up" sights and must be flipped up manually. I'm currently running the gen2 mbus rear, the pro front, and both are co-witnessed with my Vortex Sparc II red dot.... » Read More Absolutely. That's what I'm running right now. I have a railed gas block and the original and gen2 Mbus sights are not compatible as they are primarily polymer and will eventually melt on the railed block. The Pro series is all metal and is safe for use on the railed block. The gen2 Mbus rear I have lines up perfectly and saved me a good deal of money over buying the Pro rear. Note however that the Pro series are not "pop up" sights and must be flipped up manually. I'm currently running the gen2 mbus rear, the pro front, and both are co-witnessed with my Vortex Sparc II red dot. Very happy with the set up. « Show Less
803562
I have a standard height/low profile gas block paired with a YHM flattop upper receiver and the alignment is perfect. I don't think you have anything to worry about if you go with Troy or MI sight pairs: there're the best! I really like the HK sights, very accurate n my AR. I purchases a lower cost return and am very glad I saved 20 bucks!
229661
I have a complete flat top with a gas block so i wouldn't know for sure. From what i know of this scope and ar's I would assume yes.
1289896
That depends on how much lower it is. The front sight is adjustable for elevation, but there are limits.As these are 45 degree sights, A lower gas block will effect wind age as well. There is much more adjustment available there, so they should work.
983999
No, gas this sight is meant for a low profile gas block. You need a stanard height front sight.
355678
You don't need one. I have a flat top AR with standard front sight and I put this site on and had no issues at all.
303952
They work fine on a gas range or coil top electric range. I am not sure how they would work with a glass top.
576563
Yes, don't see a reason why they couldn't be. Mounted on M1A with Vltor rail, had to file quite a bit of material off the underside of the front sight with a dremel to get the sight to tighten up & be level with the back sight.
488826
The front sight is secured on the picatiny rail. Its not good on the railed gas block as it gets to hot if you have a full length quadrail it is the perfect sight.
2076542
No, the front sights will not be a problem for this scope, provided you have the scope mounted properly. I have this scope with the Nikon mounting rings and I have no issues whatsoever with the front sights on an AR15 application.
347446
It depends on the hight of the gas block. There are different size sights based on the hight of your gas block.