6 AR build questions

[TACAV]

Hi everyone, a couple questions for you all, since you have never let me down yet!



1. What is difference between a 2 piece handguard and a 2 piece freefloat handguard?

2. Some 2 piece free float handguards say "Easy install just cut off the delta ring!" If Im going to cut it off, why do they come with a delta ring?

3. When you install any flip up rear sight are they universally always the same height (when extended) so they align with a standard front sight?

4. Aimpoint or EOTech I cant decide!

5. Is this statement true?

"A 200 meter zero has the happy coincidence of an initial trajectory cross-over at 50 yards, a distance available on almost all civilian ranges including many indoor ranges. This makes it easy to achieve a 200 meter battlesight zero without recourse to surveying your own range. If 200 meters is available you can fine-tune the zero at the real distance. And should when you get the chance."

6. Anyone have any good recommendations for a side mounted light on a quad railed fore end?


Thanks!

[Pred]

Originally Posted by TACAV

Hi everyone, a couple questions for you all, since you have never let me down yet!

1. What is difference between a 2 piece handguard and a 2 piece freefloat handguard?
2. Some 2 piece free float handguards say "Easy install just cut off the delta ring!" If Im going to cut it off, why do they come with a delta ring?
3. When you install any flip up rear sight are they universally always the same height (when extended) so they align with a standard front sight?
4. Aimpoint or EOTech I cant decide!
5. Is this statement true?
"A 200 meter zero has the happy coincidence of an initial trajectory cross-over at 50 yards, a distance available on almost all civilian ranges including many indoor ranges. This makes it easy to achieve a 200 meter battlesight zero without recourse to surveying your own range. If 200 meters is available you can fine-tune the zero at the real distance. And should when you get the chance."
6. Anyone have any good recommendations for a side mounted light on a quad railed fore end?
Thanks!

1. Free float hand guard doesn't put any pressure on the barrel. Now, if all your doing is adding that and a forward grip, don't worry about it. But if you plan on sticking anything with weight on it, it could cause some accuracy issues at longer distances.

2. Delta ring is used to hold the hand guard in place. Remove it, and the hand guard would fall off

3. I'm fairly sure they are. They have to be, to a certain point, in order to have a clear line with the FSB.

4. All in what you want.

5. Sight your rifle in at 50 yards, you'll be good to go. I forget, but I think at 50 yards will set you out to about 200 yards. And with the trajectory of a .223, I wouldn't worry about drop out past 300-400 yards.

6. Just buy a Surefire G2 LED and a cheap, or not, 1" ring, you'll be good to go.

[TACAV]

Originally Posted by Pred

1. Free float hand guard doesn't put any pressure on the barrel. Now, if all your doing is adding that and a forward grip, don't worry about it. But if you plan on sticking anything with weight on it, it could cause some accuracy issues at longer distances.

2. Delta ring is used to hold the hand guard in place. Remove it, and the hand guard would fall off


6. Just buy a Surefire G2 LED and a cheap, or not, 1" ring, you'll be good to go.

Midwest Industries: Extended Carbine Length FF

"Simply cut off delta ring for easy install?"

do they mean cut off the delta ring on your old handguard?

Is a non free float handguard that touches the barrel but properly installed with heavy components more accuate than a free float that might be overloaded?

[Pred]

See, the delta ring assembly holds one end of the hand guards in place. So you cut that off, while being very careful, and then remove the hand guard. The two piece free float forearms then attach to the upper. This way all the weight thats put on the hand guards, doesn't affect the barrel. This is why when your adding a lot of stuff on your AR, go with the free float barrel, that way the barrel won't take the weight of your add ons. Go to MI website, or Daniel Defense, and look for instructions on how to install. It's very easy once you see how it's done. Now, some free float forearms require you take the FSB and everything off, and can require a lot more skill and tools to be done correctly. So just make sure what ever you buy they say NO REMOVAL OF FSB...

Look at this page:

AR15.COM :: Forums :: Assemble your own LOWER, UPPER, FREE FLOAT, TRIGGER, GAS BLOCK - Step by step instructions!

Go about half way down where it says: install your own free-float rail system, step by step:

TROY MRF-C step by step:

Look at those steps.

[at4rxj]

I'm only going to answer the ones that I want to add to (or disagree) with what Pred said above...

Originally Posted by TACAV

3. When you install any flip up rear sight are they universally always the same height (when extended) so they align with a standard front sight?

Yes, the rear sights will all line up. The flip fronts have two kinds, but the rears are the same. Just make sure you get one for the AR-15, not the AR-10.

Originally Posted by TACAV

4. Aimpoint or EOTech I cant decide!

Both are excellent. I went with the Aimpoint, for the following reasons...

• I'm not big on the eotech reticle
• I prefer a tube style sight as opposed to the holographic
• barrery life is better on the Aimpoint
• I think they look cooler

That being said, they are both excellent sights. I'd recommend looking through both before buying, as they're not cheap. Keep in mind you may need to buy a mount separately for the aimpoint, depending on which you get.

Originally Posted by TACAV

6. Anyone have any good recommendations for a side mounted light on a quad railed fore end?
Thanks!

I started with a viking tactics mount and a cheap flashlight, but switched to a Streamlight TLR-1. The TLR-1 is freaking BRIGHT!!!! I love it. Here's a pic of the old light... I'll get a pic of the new one tonight if I remember. (this pic also shows the Aimpoint in a GG&G cantilever mount, and the FF rail extending over the gas block with a rail mounted sight )


Hope this helps!

[Pred]

I fail to see where you disagreed with me

[TACAV]

thanks for more info~

I havnt decided yet if I want to do the extended handguard. Ill have to get and install a low profile gas block and Im not sure if I know how to do that.

Some people say its not that hard and other people ive talked too said dont mess with it if you dont know what ur doing.

Either way with what ever optic/mount i go with I want the option of begin able to co witness the iron sights through the optic in case something fails with the optic.

[at4rxj]

Originally Posted by Pred

I fail to see where you disagreed with me

The light... lol
I like the TLR-1 much better. The rest of my input was simply adding to yours

[TACAV]

Originally Posted by at4rxj

The light... lol
I like the TLR-1 much better. The rest of my input was simply adding to yours

Do u simply have your TLR-1 mounted on as is, or do you have one of those pressure pad extenders?

I read a lot of positive comments on the streamlight TLR, and a lot of reports with people with other lights such as the M3 going out from recoil stress. Also heard lots of Surefire X300 lights which are of similar design to the TLR had problems with the pressure pad switch adapter breaking off when mounted to an AR15 quad rail.

[at4rxj]

I just have it mounted directly. I have a vertical grip, and put the light on the right rail. I can hit it with my thumb no problem.
I love it so far. I'll get a pic as soon as I remember.

[at4rxj]

Sorry for the delay...
As promised...

[TACAV]

ooh nice, thanks for the pics, Im gonna be getting one too later on