Are these for mounting on the same plane rail or is the front sight taller for mounting on a gas block?
182338
No there for mounting on the same plane. also i would save the money and buy MAG Pulls.
182339
They have to be mounted on the same plane. This set is not for gas block mounting unless you get a rail height gas block. Decent set of sights for the money, but definitely not Magpul.
1032848
this rail is to long to mount on a gas block. check out midwayusa they have more choices.
298880
The sight you are looking at will only work on uppers with gas block. These are a tad taller since the gas block is slightly below the quad rail on a flat top m4. The front sight is also adjustable for elevation.
61279
its made for ar15 sight height but if you have a same plane front sight it will work just fine but don't expect it to work very well with just a bead sight.
347445
It depends on the length of the gun but their the same specs. Most gas blocks are different in the way they are mounted some are "welded" some have set screws. But all can be changed for an A2 style or a low profile gas block. I hope this helps.
1974106
I used it for a rail mount. I believe you have to use the high profile for a gas block.
717071
The two sets I received in April 2013 were not on the same plane; the front sight was higher and worked well for a low-profile gas block. I liked them well enough that I'm now looking for a similar set that *are* same plane, so wish I knew for certain which are currently shipping.
1639485
I wanted to mount front sight on gas block rail too, tried it, but mine sits lower than the top rail so alignment was a problem. Checked it with laser bore and way off. I have collapsible back up sight at the end of my top rail so that space is spoken for.So I mounted mine on the top rail right behind the front back up sight, rail even with the rear sight. The rear and front are fairly close together. I'm limited on rear sight location due to scope so I'm about 6" from peep hole to pin on the top rail, but they line up pretty good with laser sight. I would use for 50 yds or less. Still need to sight in with ammo but it's 4th in priority. I wanted to mount front sight on gas block rail too, tried it, but mine sits lower than the top rail so alignment was a problem. Checked it with laser bore and way off. I have collapsible back up sight at the end of my top rail so that space is spoken for.So I mounted mine on the top rail right behind the front back up sight, rail even with the rear sight. The rear and front are fairly close together. I'm limited on rear sight location due to scope so I'm about 6" from peep hole to pin on the top rail, but they line up pretty good with laser sight. I would use for 50 yds or less.... » Read More I wanted to mount front sight on gas block rail too, tried it, but mine sits lower than the top rail so alignment was a problem. Checked it with laser bore and way off. I have collapsible back up sight at the end of my top rail so that space is spoken for.So I mounted mine on the top rail right behind the front back up sight, rail even with the rear sight. The rear and front are fairly close together. I'm limited on rear sight location due to scope so I'm about 6" from peep hole to pin on the top rail, but they line up pretty good with laser sight. I would use for 50 yds or less. Still need to sight in with ammo but it's 4th in priority. « Show Less
1639484
If you have a rail height gas block then mount it there. I like to have the sights as far apart as possible - I get better MOA.
1773342
yes...I have a DPMS as well, and that is why I got these. I am assuming that the gas block is also lower that the handguard and/or standard rail. These are very functional and work well with optics installed, quite decent.
156368
The height is very similar to the factory installed sights. No issues with sight catching on holster during draw. The sight is of course wider and longer than the factory sights.
1219573
it depends if your mounting your front sight on the end of a free float handguard or mounting directly on your barrel with a gas block. If your mounting on a free float hand guard, then your front sight is going to be way off, even if you use same plane or low plane BUIS. I mounted mine with a gas block because the aiming plane of my rifle looked more in line rather than the aiming plane looked high when mounted on my hand guard.
628922
Yes. Exactly perfect for the F A2 front sight post. Picatinny railed gas blocks are not the same height though and you would have to use something else. It also works on Free float rails.
803561
No I don't think so because the hight offset between the rail and the gas block.Call Troy and they can hook you up with the correct info. I would still get them off Amazon if you can, better deals!
1219575
The height of the front sight would matter. Many are pretty generic and will work just fine. Just make sure the sight is correct for gas block or regular flat top mounting. If zeroed properly, the ranges selector will be pretty close. Bear in mind that it's an estimated reference. Weight of the projectile and amount of powder load will cause variations. The sight is fine for most general purposes. pretty durable overall...I like them.
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.
717075
The front one is A bit higher. I like them as they work great on my AR. Hope this helps U.