6.5 Grendel stretches the AR-15’s legs well past 800 yards by pairing high-BC .264-caliber bullets with a case that fits standard STANAG mags. Our 18″, 20″, and 24″ barrels are spun from 416R stainless, 1:8 twist, and feature Type II bolts for optimal headspacing. Medium-contour and heavy SPR profiles manage heat on long strings, while rifle-length gas systems tame recoil for rapid follow-up shots. Deeply recessed target crowns protect accuracy in field conditions, and each extension sports dual ejectors for sure extraction with hot handloads. Builders can bundle these barrels with 6.5 Grendel-specific BCGs, ASC or E-Lander mags, and extended-range optics to craft a lightweight precision rifle or varmint hammer that leaves 5.56 behind.