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

  • 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
  • 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
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  • 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
    Add to Cart
  • 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
  • AR15 Pistol Upper Assembly, 5-inch 7.62x39 caliber, with 1:10 twist rate, model 160-819, black metallic finish, includes barrel and handguard

    AR15 Pistol Upper Assembly / 5" 7.62x39 / 1:10 / 160-819

    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-inch 5.56 Nato firearm assembly kit with orange accents, including various firearm parts and tools for gun assembly.

    CPF Pistol Kit / 5" 5.56 Nato / 1:5 / 205-819 Orange

    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...

    $329.00 - $409.00
    Choose Options
  • AR15 Pistol Upper Assembly, 5" 5.56 Nato, 1:5, 160-819 Orange, gun upper receiver with orange handguard and compatible tools included.

    AR15 Pistol Upper Assembly / 5" 5.56 Nato / 1:5 / 160-819 Orange

    Enhance your AR15 pistol with the AR15 Pistol Upper Assembly / 5 5.56 Nato / 1:5 / 160-819 Orange. This premium upper assembly is designed for optimal performance and durability. The 5 barrel is chambered in 5.56 Nato with a 1:5 twist rate, ensuring...

    Was: $389.00
    On Sale $239.00
  • Product CPF Pistol Kit / 5" 5.56 Nato / 1:5 / 205-819 Bronze, disassembled pistol kit with components and tools on white background.

    CPF Pistol Kit / 5" 5.56 Nato / 1:5 / 205-819 Bronze

    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...

    $329.00 - $409.00
    Choose Options
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