Does anyone know who makes the rail covers that have the sandpaper texture?

[TacBlade]

These are the full coverage rail covers that slip on? Thanks!!!

[Robocop1051]

Are you looking for harder version than the Magpul XT rail covers?

I've seen guys buy the hard KAC covers and then stipple them with a soldering gun or dremmel. That makes a really rough grippy texture.

[98Z5V]

Tango Down covers are kinda like that - is this what you're looking for?

[TacBlade]

I found out that the Tango Down panels were the ones.  They have since discontinued the sandpaper type of texture and now are of the current ones pictured above.  I ordered the SCAR version, which are like the above, but totally textured. Thanks for the help guys!!!