I have a 16" midlength AR that I am trying to buy a folding front sight for. It has a Daniel Defense 9.0 rail system and a dovetailed gas block.
Which surface would be best to mount a front sight on? The rail should still be farther our then the front sight on a carbine but I am not too sure about that. Would I lose any accuracy if I mounted it on the rail or would I be better off finding one that mounts on the gas block? I have noticed that there are alot more sight options for the rail then the gas block.
Also, what brands should I be looking for? If I can mount it on the rail I was thinking either Troy or PRi. I have a Matech BUIS in the rear if that makes any difference. I also have an aimpoint that might occasionally be mounted on my AR, but currently it is not.
I am going through the same process right now. I'm building a 9mm and am going to mount my front YHM flip up on the end of the free float. From what I have been told people seem to think that mounting on the gas block is better because the free float has a far greater chance of moving.
If your rail moves you loose your zero. This rifle will just be a fun sand pit gun so I am going to take my chances mounting on the free float.
Check out this thread I started:
It doesent get very detailed but it may answer a few of your questions.
I went with the flip sight / gas block because it is just about as low as the FF railed handguard
and putting one on the rail seemed like it was defeating the purpose.
civprod...I have a 16" midlength AR that I am trying to buy a folding front sight for. It has a Daniel Defense 9.0 rail system and a dovetailed gas block. Which surface would be best to mount a front sight on?
you might consider a popular folding front sight such as PRI which includes an integral gas block...linky
i'm not sure how any of these sights interact with a 'midlength' barrel which repositions the gas hole further forward, but this sight nestled into my DD 9.0 FSP rail on a regular 16" barrel is a great combo