AR-15 18\" Heavy Barrel, 6.5 Grendel Type 2, 1:8, Straight Fluted, Stainless

Timber Creek Rifle-Length SOCOM Barrel 6.5 Grendel 18", Black

Ballistic Advantage Premium Barrel .308 Win 18", Black - Premium Quality and Consistent Accuracy - BABL308021PQ

BALLISTIC ADVANTAGE Premium Series Barrel 6.5 Grendel 12.5" Silver

Sons of Liberty Gun Works Precision SPR Barrel 6mm MAX 16", Black - Superior Quality - 16PRECISIONSPR-6MAX

Faxon Firearms Mid-Length Button Rifled Gunner Barrel 5.56x45mm 16", Black

Ballistic Advantage Performance Barrel 5.56x45mm 13.70", Black - Compact and Efficient Barrel - BABL556036F