Is thias sight post for an higher or lower gas block
1451542
It was designed for the gas block rail that sets lower in height than the standard height rail found on any AR15's upper receiver. Assists in providing the proper height to your front sight picture for proper alignment with your rear sight. Extremely useful for standard DPMS upper receivers with a gas block rail that is not of the same height as the receiver's rail. Worked out very well for me. Hope that helped.
1451543
I'm not sure there is enough information to answer question because it will depend on the height of the rear sight and its rail. This is a short front sight. It would work if mounted on a high gas block rail with a high rear sight. I'm using it on a flat top with a free floating 10" handguard and a detachable carry handle, where I have a flat rail from the bolt actuator handle to the front of the handguard. If the gas block is lower than the rail over the upper receiver, this front sight will probably be too low, causing the strike to be too high.
1011893
I have mine attached to the gas block, It depends if you have weaver/pic rail on it
1914897
definitely a slightly lower gas block.if your gas block rail is as high as the receiver rail ,it would shoot too low. this is a taller tower.
1156019
Its designed for lower profile gas blocks. It will stand too tall on a rail height block.
983991
No, This is is purposely taller to work for the lower gas blocks. If your gas block is level with the top rail, then you need the one that is not gas block height. This same manufacturer makes both. You do need metal sights for the gas block since plastic ones will melt. And these are metal, So just get the standard height sight. You will be ready to shoot.
1866995
Yes, there are a number of different gas blocks available for the AR 15 style rifles. The most popular is the M16A2 post sight, that also incorporates a sling ring and bayonet lug. Just google photos of M16, M16A1 or M16A2s, Also, any gunsmith can swap out any style gas block.
1058534
The distance from the flat surface of the top rail on the YHM front sight gas block is .803. The bottom of the arch is not exactly circular, so I would say .800. With the front sight bottomed out, it measures 1.075 from the flat to the tip of the sight. And that is my problem, I cannot get the piece sighted in vertically at 25 yards, I'm shooting 6 inches too high. That's with a YHM gas block and a YHM upper receiver. I am not having this issue with my MI sights on a 9mm upper. That said, I have not eliminated other possible interactions, so it might not be the sight. I'm going to switch them out for a better comparison. However, there have been other complaints regarding sighting in the TI sights at short distances. Guess I could grind the sight post down a bit to correct the problem.
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.
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.
1336333
If the trigger opening has an inch opening you should be fine. The narrow post is the piece that fits through the trigger opening.
2202571
No, but you can put a riser on the gas block. Yankee Hill makes a riser for that specific purpose.
904951
It seems like the gas and liquid connectors attach to either post. As long as you connect them correctly, they seem to work fine.
1736363
Mine actually cleared it. Doesn't interfere at all, but you could always change to a low profile gas block. I also mounted some flip up a angled sights which work perfectly.
161952
his sight has a height of approx. 1.38" to top of post. I say approximaely because this will depend on adjusted height. Use this on a rail or rail height gas block, NOT the normal height gas block. This will work with any flat top with any standard rear sight. There will be a problem using it with an A1 or A2 upper receiver as the post height will be approximately 0.30" that that on a non F-marked sight base. Not a major deal as long as you are aware and can make adjustments.
25793
I have a standard front sight but I replaced the post with a tritium filled one from meprolight. Just make sure whichever one you pick that it is adjustable for elevation as this rear sight only adjusts for windage and distance.
347444
Yes..this front sight is mounted on my gas block, and together equals the same height as a standard m-4 front sight.NOTE: The rail on my gas block is lower than the rail on the receiver, that is why I needed this standard front sight. {they do make a short front sight for full length rails} hope this helps. joe
52745
I believe it woyld be too high. My gas black was lower than my rear rail on my DPMS Oracle.