Limited Time Products

Limited Time Products – Exclusive AR15 Kits, Uppers & Parts

Don’t miss your chance to grab limited time AR15 products from AR15-Overstock.com — featuring top-performing micro AR pistol uppers, 5 inch ARP kits, and more. These exclusive builds and components are designed for shooters who want performance, precision, and unbeatable value.

From rifle kits and micro pistol kits to AR uppers and seasonal products, every item is built to last and priced to move fast. Whether you’re upgrading your setup or starting a new build, our limited time AR products deliver quality craftsmanship and head-turning designs you won’t find anywhere else.

Act fast — these kits and uppers are available only while supplies last.
Shop Micro AR Pistol Uppers, 5 Inch ARP Kits, and more limited-time builds today

  • 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 $499.00
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  • 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 $399.00
    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 $499.00
    Add to Cart
  • TufForce Gun Lock / 170-021, close-up image of the lock mechanism with textured surface and keyhole.

    TufForce Gun Lock / 170-021

    Ensure safe firearm storage with the Tufforce Gun Lock, a reliable and easy‑to‑use locking device designed to prevent unauthorized access and enhance responsible gun ownership. Built with durable materials and a simple key mechanism, this gun lock offers...

    $19.99
    Add to Cart
  • AR-15 Barrel 16".223 Wylde 1/8 twist Diamond Fluted, black rifle barrel with silver diamond pattern fluting and threading for attachment.

    AR-15 Barrel 16" .223 Wylde 1/8 twist/ Diamond Fluted / 110-340

    Upgrade your AR-15 with this precision-made 16″ .223 Wylde barrel featuring a 1:8 twist rate and diamond fluting for improved performance, reduced weight, and enhanced heat dissipation. Built for reliability and accuracy, this barrel is ideal for...

    $99.00
  • Xtreme Tactical Sports Tactical Bipod, Adjustable black rifle bipod with spring-loaded legs and rubber feet for stability.

    Xtreme Tactical Sports Tactical Bipod / 905-200

    The Xtreme Tactical Sports Tactical Bipod provides a stable and reliable shooting platform for AR-15s and other firearms equipped with a Picatinny rail or swivel stud mount. Built with a durable aluminum body and reinforced steel components, this bipod...

    $24.99
    Add to Cart
  • MP5 Style Magazine 9mm 30 Rounds, transparent Magazine for MP5, 210-205.

    MP5 Style Magazine 9mm 30 Rounds / 210-205

    The ETS pistol magazine is constructed from advanced impact-resistant polymer engineered to perform in extreme conditions, offering excellent resistance to heat, cold, and UV exposure. Its translucent body allows for quick round count checks at a glance...

    Was: $26.99
    On Sale $19.99
    Add to Cart
  • 50 Beowulf Heart Breaker Muzzle Brake / 220-040, black firearm muzzle brake with multiple port holes for recoil reduction.

    .50 Beowulf Heart Breaker Muzzle Brake / 220-040

    Designed for compatibility with AR barrels featuring a bore diameter of .50 caliber or smaller and 49/64-20 muzzle threads. This lightweight component weighs just 5.5 oz and comes complete with a locking nut for a secure, hassle-free...

    Was: $120.00
    On Sale $59.99
    Add to Cart
  • CPF Pistol Kit /5" 7.62x39 / 1:10 / 205-821 Fear Nothing, disassembled firearm components and accessories for customization or repair.

    CPF Pistol Kit / 5" 5.56 / 1:10 / 205-821 Fear Nothing

    THIS 5 INCH AR PISTOL KIT IS EVERYTHING YOU NEED TO BUILD A MICRO AR PISTOL EXCEPT A STRIPPED LOWER. The receiver is a flat top M4 Mil-Spec upper receiver are forged CNC Machined from 7075-T6 Aluminum, the hardest and most durable material of any upper...

    Was: $449.00
    On Sale $319.00
  • AR15 Pistol Upper Assembly, 5-inch 5.56 NATO barrel with 1:5 twist and Fear Nothing branding, black finish, and tactical rail.

    AR15 Pistol Upper Assembly / 5" 5.56 Nato / 1:5 / 160-817 Fear Nothing

    This MICRO AR15 upper receiver assembly comes ready to attach to any Mil-Spec lower receiver. The receiver is a flat top M4 forged Mil-Spec upper receiver that is CNC Machined from 7075-T6 aluminum – the hardest and most durable material of any...

    Was: $359.00
    On Sale $219.00
  • CPF Pistol Kit /5" 7.62x39 / 1:10 / 205-821, disassembled firearm parts and components laid out for assembly or repair.

    CPF Pistol Kit /5" 7.62x39 / 1:10 / 205-821

    THIS 5 INCH AR PISTOL KIT IS EVERYTHING YOU NEED TO BUILD A MICRO AR PISTOL EXCEPT A STRIPPED LOWER. The receiver is a flat top M4 Mil-Spec upper receiver are forged CNC Machined from 7075-T6 Aluminum, the hardest and most durable material of any upper...

    Was: $449.00
    On Sale $319.00
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