AT3™ Assembled Pistol Upper for AR-15 – 10.5″ 5.56 NATO Barrel with 9″ SPEAR M-LOK Handguard
Built to Order – Ships Within 3 Business Days
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 9-inch handguard keeps the overall length minimal while still providing room for essential accessories without getting in the way.
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 9-inch SPEAR free-float handguard gives you enough real estate for a light and grip without adding unnecessary bulk.
Built on AT3’s forged upper receiver with forward assist and dust cover installed, this setup pairs a low-profile .750 steel gas block and stainless gas tube for reliable function. The AT3 Combat flash hider reduces muzzle flash 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
- 9-inch SPEAR M-LOK free-float handguard for accessory mounting
- Forged upper receiver with forward assist and dust cover installed
- Low-profile .750 steel gas block and stainless steel gas tube
- AT3 Combat flash hider reduces muzzle flash
- 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 – 9″ Handguard – No BCG/CH
- MPN: FFML-FOR-P-SPEAR-105-7
- Caliber: 5.56 NATO
- Barrel Length: 10.5 inches
- Barrel Profile: Government
- Gas System: Carbine length
- Handguard Length: 9 inches
- Handguard Type: M-LOK free-float
- Upper Receiver: Forged with forward assist and dust cover
- Gas Block: .750 low-profile steel
- Muzzle Device: AT3 Combat flash hider (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
- 1x Assembled Upper Receiver
- 1x 9″ SPEAR M-LOK Handguard
- 1x 10.5″ 5.56 NATO Government Profile Barrel
- 1x Combat Flash Hider & Crush Washer
- 1x Carbine-Length Gas Tube
- 1x Low-Profile Gas Block
- 1x Forward Assist
- 1x Dust Cover
Products available on this page:
- AT3™ Assembled Forged Pistol Upper for AR-15 - 5.56 NATO - 10.5" Barrel - 9" Handguard - No BCG/CH - 3 Colors - Black - Color: Black | SKU: FFML-FOR-P-SPEAR-105-7-BLK
- AT3™ Assembled Forged Pistol Upper for AR-15 - 5.56 NATO - 10.5" Barrel - 9" Handguard - No BCG/CH - 3 Colors - Flat Dark Earth - Color: Flat Dark Earth | SKU: FFML-FOR-P-SPEAR-105-7-FDE
- AT3™ Assembled Forged Pistol Upper for AR-15 - 5.56 NATO - 10.5" Barrel - 9" Handguard - No BCG/CH - 3 Colors - OD Green - Color: OD Green | SKU: FFML-FOR-P-SPEAR-105-7-ODG














