AT3™ Assembled Pistol Upper for AR-15 – 5.56 NATO – 10.5″ Barrel – 12″ Handguard – No BCG/CH – 3 Colors

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AT3™ Assembled Pistol Upper for AR-15 – 10.5″ 5.56 NATO Barrel with 12″ SPEAR M-LOK Handguard

This assembled upper delivers a compact, hard-hitting platform for AR pistol builds and SBR conversions. This is the foundation for shooters building a maneuverable home defense weapon, a truck gun, or a compact range blaster where you need something short but still want the reliability out of a 5.56. The extra handguard length over the barrel gives you flexibility for hand placement and accessory mounting without worrying about heat or blast.

The 10.5-inch government profile barrel in 5.56 NATO pairs with a carbine-length gas system for reliable cycling with a wide range of ammunition, while the 12-inch SPEAR free-float handguard provides ample real estate for lights, lasers, and grips without adding bulk.

Built on AT3’s slick side billet upper receiver with a low-profile .750 steel gas block and stainless gas tube, this setup is ready to run once you add your choice of bolt carrier group and charging handle. The KAK Slimline flash can redirects concussion forward and gives the muzzle a clean, finished look.

Note: Does not include bolt carrier group or charging handle. The upper is shipped fully assembled.

Features

  • 10.5-inch government profile barrel with carbine-length gas system
  • 12-inch SPEAR M-LOK free-float handguard for accessory mounting
  • Slick side billet upper receiver for clean lines
  • Low-profile .750 steel gas block and stainless steel gas tube
  • KAK Slimline flash can redirects muzzle blast forward
  • Available in Black, Flat Dark Earth, and OD Green

Specifications

  • Brand: AT3 Tactical
  • Model: Assembled Pistol Upper for AR-15 – 5.56 NATO – 10.5″ Barrel – 12″ Handguard – No BCG/CH
  • MPN: FFML-P-SPEAR-105-6
  • Caliber: 5.56 NATO
  • Barrel Length: 10.5 inches
  • Barrel Profile: Government
  • Gas System: Carbine length
  • Handguard Length: 12 inches
  • Handguard Type: M-LOK free-float
  • Upper Receiver: Slick side billet
  • Gas Block: .750 low-profile steel
  • Muzzle Device: KAK Slimline flash can (1/2×28 thread)
  • Color Options:
    • Black – Type 3 Hardcoat Anodized
    • Flat Dark Earth – H-267 Cerakote Magpul® Flat Dark Earth
    • OD Green – H-232 Cerakote Magpul® OD Green

What’s Included – Installed

Products available on this page:

The AT3 Tactical store has a 90 day no-hassle return policy for products in good condition. You can view the full details of our return policy here.

If you encounter an issue or defect with a product after 90 days of your purchase, you can refer to the manufacturer for a warranty claim. Their policies are below.

AT3 Lifetime Warranty Logo

All AT3 Tactical Brand Products carry a lifetime warranty against manufacturer’s defects.

This includes AT3 Red Dot SightsHandguardsIron Sights, and any other product that carries the “AT3 Tactical” or “AT3™” name. For other brands (ex. Magpul or Troy), please refer to the manufacturer’s warranty policy.

In the event that your AT3™ product becomes unusable, we will repair or replace the product at no charge to you.

If we cannot repair your product, we will replace it with a product in perfect working order of equal or better physical condition. The warranty is fully transferable, but we may require information about the original purchase to validate the authenticity of the product.

If your product is in need of warranty service, please contact AT3 Tactical to start the process

Our contact info is available here. To expedite processing, please provide your order information and description of the defect.

Please note: The AT3 Lifetime Warranty does not cover loss, theft, intentional damage or cosmetic damage that doesn’t affect the performance of the product.

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