What's that rail called...

[gunner552]

I can never figure this out.
What's the rail system called that attaches to the top rail of the R.I.S. handguard of an m4 that makes the rear rail and front rail equal. if u know what I mean. it's hard to explain but something liek this::



PLEASE REPLY BY MESSAGE OR EMAIL. I REALLY DON'T CARE.
T H A N K Y O U

[Relja]

I believe its called an R.I.S. or rail in system.

[vatek]

The airsoft term would be a "Nitro Rail".

http://www.wgcshop.com/pcart/shopper...6GR_srch_nitro

Not sure what the real steel equivalent is called.

[gunner552]

Thanks alot.
For what they are they're pretty pricey. : P

[vatek]

Nitro more or less exclusively makes rail systems, and they seem to do a good job at it.

The one I linked is popular for fixing TM M4 barrel wobble, and the ones I've seen in person have been pretty well-made.

[gunner552]

That's perfect.
I'm looking for the best accuracy possible.
I'm transforming my M4 into a sniper rifle.
It'll take some cash-money and some time, but it'll happen. :P

[mcguyver]

Many rail systems come with that top rail integrated. The one in the pic is a CASV. Both real VLTOR ones and the clones have this rail fixed and it is not removable. Certain models of ARMS SIR come like that as well, but all have the option to remove that complete (or part of it) top rail to create a bi-level rail system.

[CDN_Stalker]

Originally Posted by Relja

I believe its called an R.I.S. or rail in system.

RIS: Rail Interface System

RAS: Rail Accessory System

[Goodl2ussian]

Thats not a nitro rail thats a CASV.

[damage]

If you just want that rail it is called SEBONE rail. Companies who makes that rail is CA, Freedom Art and Laylax.

[Ronan]

Originally Posted by Relja

I believe its called an R.I.S. or rail in system.

Made me giggle

[Drake]

Originally Posted by gunner552

That's perfect.
I'm looking for the best accuracy possible.
I'm transforming my M4 into a sniper rifle.
It'll take some cash-money and some time, but it'll happen. :P

That rail may not be the best way to go about that achieving that.

If barrel wobble is your main concern, start with a one piece outer barrel. If you take it one step further and get a metal receiver, the whole thing will be rock solid.

Don't know what kind of "sniper rifle" you're trying to make, but you might find something like a Free Floating RAS handguard set that comes with a barrel and everything. I used one for a long time in conjunction with a plastic receiver (a long ongoing project).

[vatek]

Originally Posted by Goodl2ussian

Thats not a nitro rail thats a CASV.

He's asking specifically about a rail that attaches separately to the RIS, not an integrated one. The pic is a CASV, yes, but he's asking about something different.