modify two AR's

jmike1487 · Mar 12, 2014

Hello let me start off by saying I love this Rifle and how it shoots! Now I would like to make it better in my eyes and serve and different purpose.
I want to take off the front A2 sight and Carry handle and add a scope. I am going to need a a gas block and rail system to mount
the front back up sight. Now Is this doable? and if so what gas block would I need? and what would be a decent quad rail that will fit the HBC? any and all input will be helpful! thanks in advance!

budman93 · Mar 12, 2014

What rifle?

chale127 · Mar 12, 2014

Yes, what rifle, make and model, a photo would be even more helpful in addition to the make and model

jonnyl · Mar 12, 2014

If you love it, keep it and get (or build) another upper to swap depending on your mood. You'll love it twice as much!

seawolf823 · Mar 12, 2014

you could always chop the front sight and install a free float hand guard over it. I did this fairly easily with one of my rifles.

BradMacc82 · Mar 12, 2014

If you don't want to spend the $$ for another upper. Chopping the FSB is the best solution to do the free-float handguard.

It's the most secure method of retaining the block, and accommodating a free float rail.

GoGoGadget · Mar 12, 2014

Not to hijack the OP's thread, but when you chop the front A2 sight, do you have to remove it first? Or can you just (carefully) cut it down with a cutoff wheel on a Dremel while still on the barrel?

quad · Mar 12, 2014

GoGoGadget said:
Not to hijack the OP's thread, but when you chop the front A2 sight, do you have to remove it first? Or can you just (carefully) cut it down with a cutoff wheel on a Dremel while still on the barrel?

You can do it on the barrel. :thumbsup:

BradMacc82 · Mar 12, 2014

Cut it down on the barrel, sand it flush, touch it up with your choice of paint/finish.

A lot easier than some would believe.

Pmbspyder · Mar 12, 2014

BradMacc82 said:
Cut it down on the barrel, sand it flush, touch it up with your choice of paint/finish.

A lot easier than some would believe.

Yup, and, as a bonus, one of the sturdiest and most well-mated lopro gasblocks you can get

GoGoGadget · Mar 12, 2014

quad said:
You can do it on the barrel.

BradMacc82 said:
Cut it down on the barrel, sand it flush, touch it up with your choice of paint/finish.

A lot easier than some would believe.

Pmbspyder said:
Yup, and, as a bonus, one of the sturdiest and most well-mated lopro gasblocks you can get

Great, thanks fellas. I think I'm going to do this for my next upper project.

seawolf823 · Mar 12, 2014

Here is what was my A2 FSB after chopping, grinding and painting.

jmike1487 · Mar 13, 2014

chale127 said:
Yes, what rifle, make and model, a photo would be even more helpful in addition to the make and model

Sorry I completely forgot that I posted this. I didn't get any notifications so that's why I didn't respond.

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Grey_Man · Mar 13, 2014

If you are looking for a project, you could chop them off. Or you could buy a separate upper with the characteristics you want and either keep or sell the other upper receiver. I personally would go with the latter, but that is just me. Chopping something up doesn't seem like that much fun to me and it could hurt the resale value if you ever decide to sell it in the future.

jimbobborg · Mar 13, 2014

jmike1487 said:
Sorry I completely forgot that I posted this. I didn't get any notifications so that's why I didn't respond.

Sent from my iPod touch using Tapatalk

So what kind of upper do you currently have? I'd personally go with a separate upper as any system with a pinned FSB will be more sturdy than a non-pinned railed gas block. Plus you can get a better/longer/whatever barrel and do something different and still use the same lower. YMMV.

jmike1487 · Mar 13, 2014

So currently I have a windham weaponary hbar with the standard upper that comes with the Lower. It has a A2 front sight. What I would like to do is "un pin" the sight and have a regular gas block added if possible. I m pretty sure I can't change the upper due to the whole "hbar" designation. Hate Maryland laws.

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BradMacc82 · Mar 13, 2014

Just chop it. The method of securing is vastly better than what you'll get by swapping to a low profile gas block.

The rails going to cover it anyways.

jmike1487 · Apr 10, 2014

Still haven't decided what to do about swapping out the A2

clandestine · Apr 10, 2014

Swapping an A2 is not a upgrade. The A2 is taper pinned and the most reliable. Have the tower chopped.

jmike1487 · Apr 10, 2014

That's a option I guess.

modify two AR's

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