![Right side rifle black gray metal plastic head down hd-15 master series](/media/qjddsssa/hdright.jpg?quality=60)
The company’s HD-15 18” Master Series is a feature-rich, modern variant of the Stoner design optioned for long-range work. The gun’s upper and lower receivers are matched and machined from billet aluminum. A Picatinny rail is provides for optic mounting and the gun’s handguard is topped with rail for accessories. Additionally, M-Lok slots are given throughout for further attachment of accessories.
![close-up rifle receiver action black gray metal aluminum white](/media/e2zbktkx/hd15close.jpg?quality=60)
Head Down Firearms has outfitted its Master Series with top-shelf components. A Luth AR fully adjustable stock is furnished for a custom user interface. A Mission First Tactical grip is supplied. Head Down provides a 18” chrome-moly steel barrel on our test sample of the HD-15 Master Series. A multi-colored Cerakote finish is provided, a treatment Head Down Firearms is known for. Nitriding is applied to the gun’s bolt carrier group for extreme corrosion protection.
![gun stock black plastic metal knobs white background](/media/xmijpecq/hd15stock.jpg?quality=60)
Watch our NRA Gun of the Week video above to learn more about the Head Down Firearms HD-15 Master Series.
Head Down Firearms HD-15 Specifications
Manufacturer: Head Down Firearms
Action Type: direct-gas-impingement-operated semi-automatic, center-fire rifle
Chambering: .224 Valkyrie
Receivers: machined aluminum
Barrel: 18” chrome-moly steel, Nitride finish
Sights: none; Picatinny rail for optics
Trigger: 5-lb., 3-oz. pull
Magazine: 20-round capacity C-Products
Stock: LUTH-AR MBA-1 fully adjustable
Length: 40.13”
Weight: 7 lbs., 15 ozs.
MSRP: $1,999
Further Reading:
A Guide to Precision-Rifle Shooting on a Budget
Tested: Inside The .224 Valkyrie
Uncovering the Secrets to Long-Range Precision Shooting
Long-Range Warriors: The USMC M40 Rifles
Selecting An AR
Extras: