Sniper Grunt 4.2 Inch Pistol Length M-LOK Free Float Handguard for AR-15 and AR Pistols. SKU: MMARA42
Pistol Length CNC machined Aluminum Handguard with Picatinny Top Rail and M-LOK slots. Black anodized. Comes with steel barrel nut and hex wrench. Barrel nut uses a 30mm crows foot type wrench. Weighs only 6.6 oz with barrel nut.
These will fit AR-15 uppers. Therefore they will also fit AR Pistol
builds that have AR-15 upper barrel nut threading such as the 300
Blackout and the AR-9.