Radical Firearms 12.7x42mm AR-15 Barrel - Carbine - Standard - 10.5"

LaRue Tactical STEALTH .223 Wylde AR-15 Barrel - Carbine - Medium - 12"

TacFire AR-15 Blow Back 9mm 1:10 4150 Chrome Moly Vanadium Barrel - 1/2x36 - 7.5"

TacFire AR-15 Blow Back 9mm 1:10 4150 Chrome Moly Vanadium Barrel - 1/2x36 - 4.5"

TacFire AR-15 Blow Back .45 ACP 1:16 4140 Chrome Moly Steel Barrel - 5/8x24 - 7.5"

TacFire AR-15 Blow Back .45 ACP 1:16 4140 Chrome Moly Steel Barrel - 5/8x24 - 16"

Ballistic Advantage Modern Series 5.56 AR-15 Barrel Gov. Carbine - 10.5" - Open Box

DMA Inc. XTS AR-15 5.56 NATO 4150 CMV Barrel - Carbine - Government - 10.5" - 1:7