6.5 Grendel AR-15 Rifles & Uppers6.5 Grendel pushes the AR-15 platform to 800 yards where 5.56 runs out of energy. Our Grendel uppers run a stainless medium-contour 16″, 20″, or 24″ barrel with rifle-length gas — the exact configuration the round was designed for. No DPMS receiver required; drops on any mil-spec AR-15 lower.Related CategoriesAR-15 RiflesAR-15 UppersLong RangeHunting RiflesEvery firearm on this page ships direct from our Stafford, Texas facility to the transferring FFL dealer of your choice. California, New York, New Jersey, and Massachusetts-compliant configurations available on request. NFA items (suppressors, SBRs) require Form 4 processing through your transferring dealer.