options for accessory rails

Are there any rails that can be attached to my standard m4 handguards that can I can attach forearm grips or other options?

Yes. MI makes a piece of rail that you can attach to the bottom or top of your standard handguards.

http://www.bravocompanyusa.com/Midwest-Industries-MCTAR-03-p/mctar-03.htm

Or perhaps the shorter version?

http://www.bravocompanyusa.com/Midwest-Industries-MI-OR-p/mi-or.htm

Bravo seem to be out of stock on both, but I’m sure someone has them.

One other option might be to use a set of magpul MOE plastic handguards. They are designed to have rails mounted to them as needed.

They will preserve the light feel that is lost when you mount a fully railed handguard.
I bought a set for my 10.5" LMT upper and they work great. And at about $27, they won’t break the bank.

Don

The MI rails are GTG! They mount to the standard handguards well and are even more versatle with the MOE’s which allow for a greater number of mounting positions and are designed for use with such rails and accessories.

A light on the standard handguards should be no problem, but I might be a little leary of mounting a VFG on them.

-RD62

I have one gun with a light attached to a piece of rail on the handguard, no issue there.

Attaching a VFG to a standard set of handguards has never turned out well in my observation.

Do you mean the MI-02?

yeah, guess so…

Also recently saw these:

http://www.ergogrips.net/item-detail.cfm?ID=4356-2&storeid=1&image=ergoprail.gif&CFID=19054428&CFTOKEN=88600065

inexpensive and light weight.