Brenton USA Upper Receiver, Scout, 6mm ARC, 18in Barrel, 5/8X24 Thread, 1-7.5 Twist, Foliage Marblekote, Foliage Marblekote, UPS18FM6.0

Brenton USA Upper Receiver, Tracker, 6mm ARC, 22in Barrel, 5/8X24 Thread, 1-7.5 Twist, Autumn Marblekote, Autumn Marblekote, UPT22AM6.0

Brenton USA Upper Receiver, Tracker, 6mm ARC, 22in Barrel, 5/8X24 Thread, 1-7.5 Twist, Midnight Marblekote, Midnight Marblekote, UPT22MM6.0

Bear Creek Arsenal BC-15 6mm ARC 16in Bolt Action Style Upper Receiver, M4 Barrel, 1-8 Twist, 5/8X24, Flash Hider, Parkerized, UABA-371-6MMAMM41618-15ASR

Wilson Combat Match Grade Barrel, AR-15, 6mm ARC, 18 In, Tactical Hunter, Intermediate Length, 1-7.5 Twist, 5/8X24 Threaded, Glass Bead, TR-6ATHIG18FT7-5

Rainier Arms Match 6mm ARC Barrel, Silver, 16 In, RAB-M-6ARC-16-R-NF-SAT

BSF Barrels 16in AR-15 Barrel, 6mm ARC, 1-7.5 Twist, Mid Length, 5/8-24 Thread, Gray, FM15166ARC75

Ballistic Advantage ARC Threaded Barrel, 6Mm, 20In, DMR, Rifle, 1-7 Twist, 5/8X24 Threaded, QPQ Corrosion Resistant, Black, BABL6MM003PQ

RISE Armament AR-15, 6mm ARC, 18in Complete Upper Receiver, Rifle Length, 1-7 Twist, 1/2X28, Black, RA-6ARC-CU-BLK-18

Ballistic Advantage ARC Threaded Barrel, 6Mm, 16In, SPR, Mid-Length, 1-7 Twist, 5/8X24 Thread, QPQ Corrosion Resistant, Black, BABL6MM001PQ

RISE Armament AR-15, 6mm ARC, 18in Complete Upper Receiver, Rifle Length, 1-7 Twist, 1/2X28, Dark Gray, RA-6ARC-CU-GRY-18

Ballistic Advantage 6mm ARC Fluted Threaded Barrel, 16In, SPR, Mid Length, 1-7, Stainless Steel, BABL6MM001PL

RISE Armament AR-15, 6mm ARC, 18in Complete Upper Receiver, Rifle Length, 1-7 Twist, 1/2X28, Patriot Brown, RA-6ARC-CU-BRN-18

Shaw AR-15 6mm ARC Threaded Barrel, 14.5In, HBAR Profile, 1-7.5 Twist, 5/8-24 Thread, Matte Stainless, AR15HBSS146ARC

Rainier Arms Match 6mm ARC Barrel, Silver, 12 In, RAB-M-6ARC-12-M-NF-SAT

Proof Research Impact Precision Steel 6mm ARC Threaded Rifle Barrel, 26 Inch, Competition, 1-7.5 Twist, 5/8-24, Silver, 138489

Rainier Arms Match 6mm ARC Barrel, Silver, 18 In, RAB-M-6ARC-18-R-NF-SAT

Stag Arms AR-15 Covenant Right Hand Upper Receiver, 6Mm, 16in Barrel, BULL Profile, 1-7 Twist, 5/8-24 Thread, VG6 Gamma, Black, STAG15102201

Ballistic Advantage 6mm ARC Fluted Threaded Barrel, 20In, DMR, Rifle Length, 1-8, Stainless Steel, BABL6MM003PL

V Seven Match Stainless Steel AR-10 6mm ARC Threaded Barrel, 16 Inch, Mid Length, 1-7 Twist, 5/8X24, Ti, 6ARCM7T-16

Proof Research Falkor Steel 6mm ARC Threaded Rifle Barrel, 26 Inch, Competition, 1-7.5 Twist, 5/8-24, Silver, 138526

Faxon Firearms Match Barrel, AR Platform, AR-15, 6mm ARC, 16In, Gunner, Mid Length, 1-7.5 Twist, 5/8X24 TPI Thread, Black, 15BARC75M16NGQ-5R-NP3

Faxon Firearms Match Barrel, AR Platform, AR-15, 6mm ARC, 24In, Heavy Fluted, Rifle Length, 1-7.5 Twist, 5/8X24 TPI Thread, Black, 15BARC75R24FHQ-5R-NP3

Ballistic Advantage 6mm ARC Threaded Barrel, 18In, SPR, Rifle Length, 1-7, Stainless Steel, BABL6MM002P

CMMG Mk4 Resolute Upper Receiver Group, 6mm ARC, 16.1In, Armor Black, 60B1091-AB

BSF Barrels 18in AR-15 Barrel, 6mm ARC, 1-7.5 Twist, Rifle Length, 5/8-24 Thread, Gray, FR15186ARC75

CMMG Mk4 6mm ARC Resolute Upper Group Receiver, 16.1In, Tungsten, 60B1091-TNG

CMMG Mk4 6mm ARC Resolute Upper Group Receiver, 16.1In, Midnight Bronze, 60B1091-MB

Rosco Manufacturing Purebred 20in 6mm ARC Barrel, Black, PB-20-SPR-6MM-7.5-R1