Davidson Defense Warden Duty 16-inch 1:10 9MM AR-9 Freefloat Keymod Handguard Rifle Full Build Kit

Davidson Defense Warden Duty AR-9 Rifle Full Build Kit - 16-inch 9mm 1:10 Freefloat KeyMod Handguard

The Davidson Defense Warden Duty is an AR-9 rifle full build kit chambered in 9mm with a 16-inch barrel. The kit includes the upper assembly, 9mm bolt carrier group, charging handle, Special Operations AR-15 stock, mil-spec heavy-duty 6-position aluminum buffer tube, 5.5 oz 9mm carbine buffer, lower parts kit, and all associated buffer system hardware. The AR-9 platform operates via blowback. The lower receiver is not included.

Key Features

• 16-inch 4150 Chrome Moly Vanadium steel barrel
• Nitride barrel finish
• 1:10 twist rate
• 1-in-2x36 thread pitch
• 7075-T6 aluminum upper receiver with M4 feed ramps, anodized finish
• 15-inch freefloat KeyMod handguard in aluminum
• 9mm nitride bolt carrier group in 8620 alloy steel, compatible with Glock and Colt magazines
• Mil-spec M4 charging handle
• 9mm A2 birdcage flash hider with manganese phosphate finish, 1-in-2x36 thread pitch
• Special Operations AR-15 stock in glass filled polymer, black
• Mil-spec heavy-duty 6-position aluminum buffer tube
• 5.5 oz 9mm carbine buffer

Perfect For

• AR-9 rifle builders sourcing a complete kit around a 16-inch 9mm upper
• Builders completing a stripped AR-9 compatible lower receiver
• Shooters running a freefloat KeyMod handguard on an AR-9 build
• Builders looking for an AR-9 rifle kit with a stock included

Barrel and Upper Receiver

The 16-inch barrel is 4150 Chrome Moly Vanadium steel with a nitride finish and a 1:10 twist rate. The muzzle is threaded at 1-in-2x36 and pairs with the included 9mm A2 birdcage flash hider in manganese phosphate finish. The upper receiver is 7075-T6 aluminum with M4 feed ramps and an anodized finish, serving as the core front end structure for the AR-9 build. M4 feed ramps support reliable cartridge feeding from the magazine into the chamber. The AR-9 platform operates via blowback.

Handguard

The 15-inch freefloat KeyMod handguard is aluminum in black, providing a clean forend with KeyMod accessory slots for lights, grips, and other attachments across the full handguard length. The handguard extends beyond the 16-inch barrel length, with the muzzle device providing the necessary clearance past the handguard.

Bolt Carrier Group and Charging Handle

The included 9mm bolt carrier group is built from 8620 alloy steel with a nitride finish and features an external extractor. It is compatible with both Glock and Colt magazine patterns, covering the two primary AR-9 lower receiver feed configurations. The mil-spec M4 charging handle completes the upper component set.

Stock and Buffer System

The Special Operations AR-15 stock is glass filled polymer in black and pairs with the included mil-spec heavy-duty 6-position aluminum buffer tube. The 5.5 oz 9mm carbine buffer, lower parts kit, and all associated buffer system hardware cover the core lower completion components outside the serialized lower receiver.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included.