This listing is for an Aero Quantum M-LOK Handguard (12.7" Black) for an AR-15 platform.  It is in perfect condition and includes the box and mounting screws.  This handguard is intended to mount to Aero's "enhanced" upper (ie: Aero's M4E1 upper) and does NOT include a barrel nut.  If you would like to attach this to any other mil-spec AR-15 upper, you will need to purchase an Aero BAR Barrel Nut (not included here).  When I was building my AR, I didn't know which size handguard I wanted, so I bought two and picked the size that worked best for my rig.  This one was a bit too long for my setup.  It has only been installed to test the fitment and look of the AR, but it has never been fired.  Thanks for looking!

The text below is copied from the Aero site:

Our Quantum Series M-LOK Handguards minimize bulk while providing an adaptive free float design that is big on features. With multiple mounting options, this affordable, rigid system can adapt to any mission. Machined to exacting dimensions from 6061-T6 aluminum it is the perfect handguard for your next AR15 build.

FEATURES:
* Designed to work with our M4E1 Upper Receiver
* 1pc free float design
* Removable 4-slot picatinny rail section for front sight
* Built in anti-rotation tabs
* 8 mounting surfaces for M-LOK accessories
* 1.78" inside diameter fits most muzzle devices and 1.5" suppressors
* Compatible with low profile gas blocks
* Made in the USA

Please note - This handguard is specific to the AR15/M4E1 platform. It is not compatible with the M5 .308/M5E1 platform. May not be compatible with all offset sights. *Polymer front Magpul MBUS sights may require modification to the sight for installation.