Home Forums Hunting & Shooting AR and Tactical Rifles Rails?

Good info, I didn't realize the free float rails differed enough to make a distinction for which low profile gas block I would need? Looking at a Larue low profile block. Yes I believe my AR has a Delta Ring so cutting would be easier way to take it off. A dremel and channel locks should take care of it.

Yup, just passing on experience from the school of "bought the parts, then bought the parts that would fit together"...

The LaRue "should" fit under the Troy rail, hopefully somebody reading has one mounted and covered with a Troy.

http://www.laruetactical.com/larue-tactical-low-profile-gas-block-lt-202

But, I'd bet it will hit a Noveske NSR, or other low clearance rail.

Not as sexy, but about guaranteed to clear anything you mount over it:

http://www.amazon.com/Troy-Profile-Rifle-Block-0-75-Inch/dp/B003RCBQSI

This is another popular one that covers the two front sight tower base contact points on the barrel, that are sometimes left unfinished. It will go under an NSR, but strikes the inside of the rail:

http://www.amazon.com/gp/product/B0...IKX0DER&pf_rd_r=01NJFBRSVVE6KQK6AZS9

It is labeled and sold as "low profile", but may not work with the newer thin tubes. There is another version that has a full lug along the top, it's thick and hits the gas tube channel.

Clamp-on: "usually" have a thicker base, also can hit in the Noveske, had one that didn't fit in a Troy Alpha, but did clear under a different Troy rail.

http://www.amazon.com/Yankee-Hill-M...33&sr=1-1&keywords=yhm+gas+block

What is the barrel brand, and do you know if the front sight base (FSB) has friction pins, or peened taper pins?

I'd seriously look at the Troy or VTAC Alpha rails. They use the GI barrel nut so you'd be able to do the install yourself with very little effort.
This new Troy looks very promising as well:
https://troyind.com/products/sdmr-rail-10-blk

You've gotten some pretty good advice here from AH64guy.

Let us know what you end up going with.

I like that design as well, just build an upper for a hunting with a similiar rail, same design with the round body and short rails up front.

And I'm a "cheese grater" fan as well, the Troy lock-up on the barrel nut has been solid for everything I want to do with the rifle.

Nice. I like the looks of that but the Alpha had the front sight included? So approximately another 100.00 for the front sight if I go with the newer rail? Not a deal breaker though?

Some of the Troy rails have a built in sight, some don't.

I use a Daniel Defense fixed front sight that's $60 and a MBUS flip up is only $40.

Good to know I'm a fan of DD as well!

Bluedreaux, why not just remove and replace the gas block? To save money? I have heard how hard the removal is and truthfully after removing 6 or 7 I just don't see it.

I really like the Samson Evo. It serves my needs perfectly.

Because I've got more time than money.

I've got a Colt left that I shaved down, done a few of them. Why shave one down? It's already pinned to the barrel and I like a pinned gas block. My others are low profiles but pinned as well by Noveske.

You can buy the Alpha rail with or without the sight, I have both and prefer with.

Do you have a preference for a low profile block? I'm looking for something "solid" that won't come loose or have any other issues. Great info in this thread guys. Thanks again.

The Troy or Yankee Hill in the second link will meet 99% of your needs.

Great, much appreciate it! Thanks.