Stainless Lo-Pro Gas Block Barrel 6mm ARC w/ Headspaced Bolt

6 Arc barrels Sniper's Hide Forum

Noveske Stainless Barrel with Lo-pro Gas Block 5.56 - 11.5 w bolt

Faxon Firearms 10.5 inch Government/Socom AR 15 Barrel – 5.56 NATO – Carbine Length – Pinned Gas Block - 4150 QPQ

300 Blackout 10.5 inch Barrel

Noveske 12.5 Leonidas Stainless Lo-Pro Gas Block Barrel 6mm ARC w/ Headspaced Bolt

Noveske 18 SPR Stainless .223/5.56 Barrel with Lo-Pro Gas Block

Noveske SPR Barrel Headspaced Bolt AR-15 5.56x45mm 18 1 7 Twist .750

Grendel Hunter 6.5 Grendel / 6mm ARC Bolt Carrier Group, Grendel Hunter

N4 Barrels Noveske Rifleworks

Stainless Lo-Pro Gas Block Barrel 5.56