KAC RIS for the M4 carbine setup $100

This is NOT the RAS setup but the old school RIS setup. I don’t have any rails for it. I decided to upgrade to a FF setup.

They are used but in good condition. This is the 2nd setup of pictures.

These are the old school setup that locks up with the flat head screws.

http://quarterbore.com/kac/kacrisras.html

Thank you.
Shipping is an extra 7 USD or and it goes USPS priority mail.