9" 338 ARC Upper for AR-15 with Faxon Match Grade Stainless Gunner Barrel and 7" M-LOK Rail
The 338 ARC was designed to deliver exceptional energy and outstanding suppressed performance from the AR-15 platform while maintaining reliable operation with both subsonic and supersonic ammunition. Optimized for heavy-caliber projectiles, the 338 ARC is an excellent choice for hunting, defensive applications, suppressed shooting, and compact AR-15 builds. This 9" 338 ARC upper features a Faxon Match Grade 416R stainless steel Gunner barrel with an aggressive 1:5 twist, pistol-length gas system, A2 flash hider, and lightweight 7" free-float M-LOK handguard, making it an outstanding option for shooters seeking a compact, hard-hitting AR-15 upper.
Quick Glance:
Caliber: 338 ARC
Platform: AR-15
Barrel Length: 9 inches
Barrel Manufacturer: Faxon Firearms
Barrel Grade: Match Grade
Barrel Material: 416R Stainless Steel
Barrel Profile: Gunner
Barrel Finish: Nitride
Twist Rate: 1:5 Twist
Gas System: Pistol Length
Handguard Length: 7 inches
Handguard Type: Lightweight Free-Float M-LOK
Upper Receiver: Forged 7075-T6 Mil-Spec AR-15 Upper
Gas Block: .750" Low Profile
Muzzle Threads: 5/8x24
Muzzle Device: A2 Flash Hider
Headspace Checked: Yes – Manson GO and NO-GO Gauges
Assembly: Fully Assembled Upper Receiver Assembly
Full Details:
Upper Receiver:
AR-15 Mil-Spec forged aluminum upper receiver with forward assist and dust cover assembly installed. Forged from durable 7075-T6 aluminum and protected with a matte black MIL-A-8625 Type III, Class 2 hard coat anodized finish. The 7075-T6 construction provides greater strength than commonly used 6061 billet aluminum.
Barrel:
Faxon Match Grade 9" 338 ARC barrel manufactured from premium 416R stainless steel with a lightweight Gunner profile, durable nitride finish, and fast 1:5 twist rate. Features 5/8x24 muzzle threads, a standard AR-15 barrel extension with 30 Cal. feed ramps, and is professionally headspaced using Manson GO and NO-GO gauges. The pistol-length gas system provides dependable cycling while maximizing performance with both subsonic and supersonic 338 ARC ammunition in compact AR-15 platforms.
Handguard:
Premium lightweight 7" carbine-length narrow-profile AR-15 free-float M-LOK handguard. M-LOK slots along the 3, 6, and 9 o'clock positions provide ample space for mounting lights, lasers, grips, sling attachments, hand stops, and other M-LOK compatible accessories. Machined from 6061 aircraft-grade aluminum and protected with a durable matte black MIL-A-8625 Type III, Class 2 hard coat anodized finish.
Gas System:
Pistol-length gas system paired with a .750" low-profile gas block. This configuration is engineered to provide reliable cycling with both subsonic and supersonic 338 ARC ammunition while maintaining smooth operation in compact AR-15 platforms.
Muzzle Device:
A2 flash hider installed to help reduce visible muzzle flash while protecting the barrel's 5/8x24 muzzle threads.
About Faxon Barrels:
Faxon Firearms manufactures premium rifle barrels known for innovative designs, excellent machining, and outstanding accuracy. Their Match Grade stainless barrels are trusted by competitive shooters, hunters, firearm enthusiasts, and custom rifle builders seeking lightweight performance without sacrificing precision.
Magazine Recommendation:
For best performance, Ballistic Barn recommends using 400 Legend magazines with all 338 ARC uppers to maximize feeding reliability.
Headspace Checked:
Every barrel is professionally headspaced using Manson GO and NO-GO gauges to help verify proper chamber dimensions and dependable operation.
Ready to Install:
This upper arrives fully assembled and is compatible with all standard Mil-Spec dimension AR-15 lower receivers.
Important:
This product is not a firearm and will be shipped directly to you. No FFL transfer is required.
Ballistic Barn AR-15 uppers are American made and machined by manufacturers specializing in Mil-Spec AR-15 components. Every barrel is professionally headspaced using Manson GO and NO-GO gauges to help ensure dependable function, outstanding accuracy, and long-term reliability.
