This is the Gen 3 Toxic Arms Pro-Series handguards in the Retail Box.
The length is 15″
It comes with a FREE Picatinny Rail as seen in the photo to attach anywhere on the Handguard that has a M-Lok slot for that extra light, laser or whatever you would like to mount to the bottom or sides of the handguard.
There are M-Lok slots down both sides and running across the bottom.
It is a 1 piece free float design and unlike many other handguards, will not require shims, super easy strait forward installation.
Ultra Light Design
Reinforced open end for added strength
Built in QD socket
100% Mil-Spec to fit any mil-spec receiver
Seamless Top Rail
M-Lok design to fit and accessory
Barrel Nut and Mounting accessories included
Fits most all 1 AR15’s.