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

  • Tac-Force Spring Assisted Folding Knife 160-401, black and red tactical pocket knife with serrated blade and ergonomic handle.

    Tac-Force Spring Assisted Folding Knife 160-401

    The Tac-Force Spring Assisted Folding Knife is built for fast deployment, dependable performance, and everyday carry convenience. Featuring a durable stainless steel blade with a spring-assisted opening mechanism, this folding knife allows...

    Was: $15.99
    On Sale $13.99
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  • Bolt Carrier Group Anodized Carrier Red / 130-015, red anodized firearm bolt carrier group with black upper portion and custom textured surface.

    Bolt Carrier Group Anodized Carrier Red / 130-015

    Upgrade your AR-15 with the XTS Lightweight Bolt Carrier Group in anodized red, designed for competition shooting and performance tuning. Machined from 7075 aluminum, this BCG reduces weight to just 5.9 oz, helping increase cycle rate...

    Was: $160.00
    On Sale $148.00
    Add to Cart
  • Bolt Carrier Group Anodized Carrier Purple / 130-014, purple anodized firearm bolt carrier group for AR-15 rifles.

    Bolt Carrier Group Anodized Carrier Purple / 130-014

    Upgrade your AR-15 with the XTS Lightweight Bolt Carrier Group in anodized purple, designed for competition shooting and performance tuning. Machined from 7075 aluminum, this BCG reduces weight to just 5.9 oz, helping increase cycle...

    Was: $160.00
    On Sale $148.00
    Add to Cart
  • Bolt Carrier Group Anodized Carrier Gold / 130-013, gold-colored anodized tactical firearm component with black charging handle.

    Bolt Carrier Group Anodized Carrier Gold / 130-013

    Upgrade your AR-15 with the BCG-GD XTS Bolt Carrier Group, precision-machined for reliable cycling, firing, and extraction. Built with all key components and engineered to meet or exceed industry standards, it delivers consistent performance...

    Was: $160.00
    On Sale $148.00
    Add to Cart
  • AR-15 Bolt Carrier Group - Nickel Boron / 130-012, metallic silver colored bolt carrier with finish details

    AR-15 Bolt Carrier Group - Nickel Boron / 130-012

    Upgrade your AR-15 with this Nickel Boron (NiB) bolt carrier group, designed for smoother operation and long-lasting performance. The NiB coating reduces friction and wear, improving reliability while making cleaning easier. Compatible with .223...

    Was: $160.00
    On Sale $148.00
    Add to Cart
  • AR15 Pistol Upper Assembly / 5 inch 300 AAC / 1:5 / 160-820, black metal firearm upper receiver with warning label, skull logo, and warning switch.

    AR15 Pistol Upper Assembly / 5" 300 AAC / 1:5 / 160-820 Beware

    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
    Add to Cart
  • 10 inch Anodized M-Lok Rail Purple, lightweight tactical firearm accessory with cutouts for reduced weight and enhanced modularity.

    10″ Anodized M-Lok Rail Purple

    Add a bold, custom look and reliable functionality to your build with the 10" Anodized M-LOK Rails in purple. Designed with a compact 10-inch profile, this rail system helps reduce overall weight while maintaining excellent maneuverability, making it...

    Was: $89.90
    On Sale $85.00
    Add to Cart
  • 10-inch Anodized M-Lok Rail Blue, lightweight tactical firearm accessory with a sleek blue finish and multiple cutouts for reduced weight and airflow.

    10″ Anodized M-Lok Rail Blue

    Add a bold, custom look and reliable functionality to your build with the 10" Anodized M-LOK Rails in blue. Designed with a compact 10-inch profile, this rail system helps reduce overall weight while maintaining excellent maneuverability, making it ideal...

    Was: $89.90
    On Sale $85.00
    Add to Cart
  • 10'' Anodized M-Lok Rail Bronze, lightweight tactical gun rail with M-Lok mounting system and a sleek bronze finish.

    10″ Anodized M-Lok Rail Bronze

    Add a bold, custom look and reliable functionality to your build with the 10" Anodized M-LOK Rails in bronze. Designed with a compact 10-inch profile, this rail system helps reduce overall weight while maintaining excellent maneuverability, making it...

    Was: $89.90
    On Sale $85.00
    Add to Cart
  • AR-15 Side Charging Upper Receiver - 5.56 / 190-051, black firearm upper receiver with side charging handle and Picatinny rail for tactical accessories.

    AR-15 Side Charging Upper Receiver - 5.56 / 190-051

    The AR-15 Side Charging Upper Receiver in 5.56 is built for shooters who want improved control, reliability, and ease of use. Featuring a side charging design, this upper allows for quick and efficient operation without needing to break your...

    Was: $99.00
    On Sale $69.00
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  • CPF Pistol Kit, 5-inch 5.56 Nato firearm parts in anodized silver color, including barrel, handguard, receiver, and various small components and tools.

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

    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
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