These rails are compatible with any Mil-Spec AR15 upper. Each component is manufactured right here in the USA to precise tolerances for a firm fit and reliable service. The barrel nut and all mounting hardware included.

MIL-STD 1913 Picatinny rail on top
M-Lok slots
Precision Machined 6000 Series aluminum, for high strength and weight savings
Precision Barrel nut to resist movement under heat
Made in USA

***Disclaimer:
This is a grab bag product! The handguards in this pile that have serious COSMETIC issues including, but not limited to:
Surface Coating Scratched
Chips and Dents
May be a color other then black

MLOK-RAIL-9-BLEM