Question on gas blocks

[trashman4515]

I'm looking at replacing the gas block on my ar. Nothing wrong with it it's just the standard a2 sight post and I want to get rid of it due to my eotech and get flip up sights instead for back ups. My question is, how do I know of the gas block is a quality one, and what makes it better quality than others? Thanks guys!

 

[rcmodel]

Price & brand name.

You won't get what you want from CTD for $15 bucks.

Start out with looking at something in this price range.
http://www.brownells.com/rifle-part...clamp-on-front-sight-gas-block-prod21446.aspx

Up to this.
http://www.brownells.com/rifle-part...silhouette-folding-front-sight-prod26728.aspx

rc

 

[dprice3844444]

go steel first off,less chance of flame cutting like you might have with aluminum.are you putting the front sight on the gas blockor on the handguard?to save money,you can just hacksaw the front sight post off and file it down.are you changing the handguards to free float?they make flip up sights with gas block made in.

http://www.amazon.com/s/ref=nb_sb_noss_2?url=search-alias=aps&field-keywords=ar-15 gas block

 

[trashman4515]

http://www.brownells.com/rifle-part...-m16-accessory-rail-gas-blocks-prod30939.aspx

This is what I was looking at. The one with the 4 rails. I planned on putting the front sight on the gas block. No the hand gaurd will stay the same, the magpul moe hang gaurd I have on it now

 

[rcmodel]

4 rails?

Mmmmmm?

Why do you need 4 rails that far out on the barrel?

Can't use it for a bipod because of barrel flex.
Can't use it for a hand grip for the same reason + you can't reach it.

So how many lights & sights you gonna put on it?

rc

 

[trashman4515]

my thought was light on one side laser on the other back up front sight on top and bipod on the bottom, i forgot about the barrel flex problem lol

 

[rcmodel]

My inclanation would be to go with a 2-rail gas block

Sight on top.
Combo laser / TAC light you can reach the controls on with one hand.

And a duel sling stud set-up on the forearm for a sling & a bi-pod if you have to have one for some reason?

You will end up with a gun you can lift.
And operate the lights & sights with your off hand.

rc