Rifle Uppers

Rifle uppers are an essential component of any AR-15 build, providing the foundation for accuracy, reliability, and overall performance. Designed to connect directly with your rifle lower receiver, these uppers house the barrel, bolt carrier group, and other critical parts that define how your rifle shoots. With longer barrel lengths than pistol uppers, rifle uppers are perfect for precision shooting, hunting, and long-range performance while maintaining the trusted versatility of the AR platform.

At AR15-Overstock.com, we offer a wide selection of AR rifle uppers, including complete assemblies, stripped uppers, and individual upper parts. Our inventory features a variety of barrel lengths, calibers, and handguard styles to help you build the exact rifle you want. Whether you’re upgrading an existing rifle or starting a brand-new build, the right rifle upper makes all the difference.

Shop top-quality rifle uppers today at AR15-Overstock.com and build with confidence.

  • AR10 20" 6.5 Creedmoor rifle upper receiver without handguard, model 160-083.

    AR10 20" 6.5 creedmore without handguard 160-083

    The 20" 6.5 Creedmore Upper – Without Handguard is designed for shooters who want long‑range performance with the flexibility to customize their AR‑10/LR‑308 build. Featuring a 20‑inch barrel chambered in 6.5 Creedmore, this upper delivers...

    Was: $299.00
    On Sale $129.00
  • AR10 18-inch .308 firearm barrel, without handguard or gas assembly, model 160-082.

    AR10 18" .308 without handguard or gas assembly 160-082

    The 18" .308 Upper – Without Handguard or Gas Assembly is built for shooters and builders who want a customizable foundation for a full-length AR-10/LR-308 rifle. Featuring an 18-inch barrel chambered in .308 Winchester / 7.62x51 NATO, this upper...

    Was: $299.00
    On Sale $129.00
  • AR10 22" 6.5 Creedmoor without handguard, firearm barrel, model number 160-080.

    AR10 22" 6.5 creedmore without handguard 160-080

    The 22" 6.5 Creedmoor Upper – Without Handguard is designed for precision shooters and builders looking to customize their long-range AR-10/LR-308 platform. Featuring a 22-inch barrel chambered in 6.5 Creedmoor, this upper delivers excellent...

    Was: $299.00
    On Sale $129.00
  • AR10 12.5" stainless steel .308 upper without handguard, model 160-079, firearm component.

    AR10 12.5" stainless steel .308 upper without handguard 160-079

    The 12.5" Stainless Steel .308 Upper – Without Handguard is an excellent foundation for builders who want full control over their AR-10/LR-308 setup. Featuring a 12.5-inch stainless steel barrel, this upper delivers durability, corrosion...

    Was: $299.00
    On Sale $129.00
  • AR10 12.5" stainless steel .308 upper, product 160-078, shown from a top view.

    AR10 12.5" stainless steel .308 upper 160-078

    The 12.5" Stainless Steel .308 Upper is built for shooters who want maximum performance in a compact, hard-hitting AR-10/LR-308 platform. Featuring a precision 12.5-inch stainless steel barrel, this upper delivers excellent durability, corrosion...

    Was: $399.00
    On Sale $229.00
  • AR15 Upper Assembly / 24" 224 Valkyrie, black firearm upper receiver with barrel, handguard, and muzzle device.

    AR15 Upper Assembly / 24" 224 Valkyrie 160-076

    Built for long-range precision, this AR-15 upper assembly features a 24" barrel chambered in .224 Valkyrie, delivering exceptional velocity, flat trajectory, and extended-range performance. Designed for shooters who demand accuracy at distance, this...

    Was: $599.00
    On Sale $309.00
    Add to Cart
  • AR15 Upper Assembly / 18" 6.5 Grendel 160-075, black tactical upper with handguard and barrel for rifle customization.

    AR15 Upper Assembly / 18" 6.5 Grendel 160-075

    This AR-15 upper assembly is designed to deliver enhanced accuracy and ballistic performance with the powerful 6.5 Grendel platform. Featuring a 18" barrel, it provides an excellent balance of velocity, range, and handling, making it suitable for both...

    Was: $499.00
    On Sale $209.00
    Add to Cart
  • Stainless Steel Upper Assembly /16" 223 Wylde, firearm upper receiver with a black and colorful artistic finish, featuring a modern and lightweight design for AR-15 rifles.

    Stainless Steel Upper Assembly /16" 223 Wylde 160-074

    This stainless steel upper assembly is built for shooters who demand reliability, durability, and consistent performance. Featuring a 16" .223 Wylde barrel, it offers the versatility to safely fire both .223 Remington and 5.56 NATO ammunition while...

    Was: $599.00
    On Sale $309.00
  • Upper Assembly /16" 9mm /1:10/M-Lock/160-053, black firearm upper assembly with M-Lock rail system and detailed component design.

    Upper Assembly /16" 9mm /1:10/M-Lock/160-053

    This AR-15 upper assembly is made from the highest quality parts and is assembled in Charleston, South Carolina. The 15" M-LOK design is one of our most popular handguard/rail designs. Features: 7075-T6 Aluminum Mil-Spec Anodized Receiver 16" 9mm Barrel...

    Was: $419.00
    On Sale $269.00
  • Upper Mystery Box

    Upper Mystery Box

    Unveil the ultimate thrill with our Upper Assembly Mystery Box! Packed with premium treasures, this curated collection elevates the mystery experience. Expect higher-value items, exclusive finds, and a touch of luxury in every unboxing. Perfect for...

    $169.00
    Add to Cart
!