Grey Ghost Precision AR-15 M-LOK Handguard

Grey Ghost Precision AR-15 M-LOK Handguard is extruded from 6061-T6 Aircraft Grade Aluminum and finished with True Black Type III Class 2 Hard Coat Anodizing. Inner diameter is 1.31 in. Includes a non-proprietary barrel nut that does not require timing. Tighten the barrel nut to 65 ft-lbs, slide the handguard over until flush with the upper receiver. Left and right index tabs prevent twist. Two fastening screws secure the handguard around the barrel nut, with an approximate torque of 35 in-lbs. Compatible with all forged upper receivers and most billet upper receivers. Features a full-length Picatinny top rail with engraved numerical markings and M-LOK slots at 3, 6, and 9 o'clock (and forward slots at 1 and 11 o'clock).