AT3™ 300 BLK 16″ Assembled Forged Upper – 2A Basics ASAL 15″ Handguard – No BCG/Charging Handle
Built to Order – Ships Within 3 Business Days
This assembled upper delivers a full-length 300 BLK platform focused on versatility and value without breaking the bank. This is the foundation for shooters building a hunting rifle, suppressor host, or multi-purpose setup where you need the hard-hitting performance of 300 BLK with maximum velocity from a 16-inch barrel. The 15-inch 2A Basics ASAL handguard provides M-LOK mounting on all sides with a patent-pending Anti-Slip/Anti-Lift attachment system that ensures a rock-solid fit while keeping weight and cost down.
The AT3 16-inch medium profile barrel in 300 BLK features black nitride finish for durability and corrosion resistance, with a pistol-length gas system for reliable cycling with both supersonic and subsonic ammunition. The 1:7 twist rate stabilizes both light and heavy projectiles across the full range of 300 BLK loads. The 2A Basics ASAL handguard weighs just 10 ounces without mounting hardware and features M-LOK slots on all sides, anti-rotation tabs, and a shaved Picatinny top rail for weight savings while maintaining full functionality.
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 birdcage flash hider effectively 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
- 16-inch medium profile barrel with pistol-length gas system for reliable cycling
- 4150 Chrome Moly Vanadium steel with black nitride finish
- 1:7 twist rate stabilizes both light and heavy 300 BLK projectiles
- 15-inch 2A Basics ASAL handguard with patent-pending Anti-Slip/Anti-Lift mounting system
- M-LOK attachment slots on all sides for maximum modularity
- Lightweight design at just 10 ounces without mounting hardware
- Forged upper receiver with forward assist and dust cover installed
- Birdcage flash hider reduces muzzle flash
Specifications
- Brand: AT3 Tactical
- Model: .300BLK 16″ Assembled Forged Upper – 2A Basics ASAL 15″ Handguard – No BCG/Charging Handle
- MPN: AT3-ASAL-300-16-BLK
- Caliber: 300 BLK
- Barrel Length: 16 inches
- Barrel Profile: Medium
- Barrel Material: 4150 Chrome Moly Vanadium
- Barrel Finish: Black nitride
- Barrel Twist: 1:7
- Barrel Weight: 29 ounces
- Gas System: Pistol-length
- Handguard Length: 15 inches
- Handguard Type: M-LOK free-float
- Handguard Material: 6061-T6 Aluminum
- Handguard Weight: 10 ounces (12 ounces with mounting hardware)
- Upper Receiver: Forged with forward assist and dust cover
- Gas Block: .750 low-profile steel
- Muzzle Device: Birdcage flash hider (5/8×24 thread)
- Color: Black
What’s Included – Installed
- 1x Assembled Upper Receiver
- 1x 15″ 2A Basics ASAL M-LOK Handguard
- 1x 16″ AT3 300 BLK Medium Profile Barrel
- 1x AT3 Birdcage Flash Hider & Crush Washer
- 1x Pistol-Length Gas Tube
- 1x Low-Profile Gas Block
- 1x Forward Assist & Dust Cover
Specifications:
| Color | Black, Flat Dark Earth, OD Green |
