The ARJ-M1 AR15 Lower Receiver is crafted with meticulous precision from high-strength 7075 aircraft-grade Billet aluminum and sets new standard for durability, functionality, and style.
Precision CNC machined from 7075-T651 aircraft-grade Billet aluminum, the ARJ-M1 AR15 Lower Receiver guarantees exceptional durability and reliability.
AT3™ .223/5.56 20? Complete Assembled AR-15 Upper
All AT3 upper assemblies come with a Lifetime Warranty – if you ever have an issue, let AT3 know, and they will make it right. It’s that simple.
Specifications:
• Barrel Length: 20?
• Gas System: Midlength
• Barrel Profile: Pencil profile
• Twist Rate: 1:7
• Barrel Steel: 4150 Chrome Moly Vanadium
• Barrel Finish: QPQ Corrosion Resistant (Nitride)
• Chamber: 5.56 NATO
• Muzzle Thread: 1/2-28
• Barrel Extension: M4
• Diameter at Gas Block: .625?
• Gas Block Type: Low-profile
• Receiver Material: Billet 6061-T6 Aluminum
• Finish:Black: Hardcoat Anodized
PRIMARY DESCRIPTION
SPECIFICATIONS
Barcode / UPC :
NCGA981
Firearm Type :
Rifle
Caliber / Ga :
5.56
On-sale :
No
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