If you can confirm that the buffer tube on your VR80 is a mil-spec tube and you can successfully remove the one piece stock/grip then this should fit.
None of the Hogue AR grips come with a screw as Hogue is expecting that users are replacing their existing parts and using the existing grip screw and buffer tube. You would need an AR grip screw and they can be found on our website.
Yes, they will fit AR15 lower receivers.
Yes, in the grip area but not in the butt stock. In order to utilize the space in the grip, you would need to purchase SKU#15092 - storage door or #15090 cargo management system.
We now offer a full line up of different color LR/AR rifle components on our website. They are found under our Tactical Rifles tab, the IMI Defense tab or by following the provided links.
https://www.hogueinc.com/tactical-rifles/ar-15-m16
https://www.hogueinc.com/imi-defense
Yes, this should be compatible.
they are two different shades of gray
The Hogue AR15/M16 Kit, Beavertail Grip and OverMold Collapsible Buttstock are compatible with the Ruger AR-556.
Yes, this will work with the A5 Buffer tube/kit.
Yes, it will fit on the Panzer Arms Mag12.