The Davidson Defense The Closer 16-inch AR-9 9MM Rifle Full Build Kit features an AR-9 configuration chambered in 9mm (9x19) with a 16-inch H-Bar barrel made of 4150 Chrome Moly Vanadium, finished with a nitride treatment. The kit includes a Mil-Spec charging handle and a 6061-T6 aluminum upper receiver, complemented by a full-length 15-inch free float quad rail handguard. The 416 stainless steel bolt carrier group is paired with the Gauntlet Arms Special Operations Stock, constructed from glass-filled polymer. The build kit supports a 5.5 oz buffer weight and incorporates a 1/2x36 thread pitch for muzzle attachments.
Platform: AR-9
Caliber: 9mm (9x19)
Barrel Length: 16 inches
Barrel Material: 4150 Chrome Moly Vanadium
Barrel Finish: Nitride
Barrel Profile: H-Bar
Twist Rate: 1:10
Thread Pitch: 1/2x36
Receiver Material: Billet 6061-T6 Aluminum
Receiver Finish: Type III Hardcoat Anodized
Handguard Material: Aircraft-Grade Aluminum
Handguard Color: Black
Handguard Style: Free Float Quad Rail
Handguard Length: 15 inches
Attachment System: Picatinny / Quad Rail
Muzzle Device Type: A2 Birdcage
Muzzle Device Ports: 5
Muzzle Device Finish: Stainless
Charging Handle: Mil-Spec AR-9 Charging Handle
Bolt Carrier Material: 416 Stainless Steel
Bolt Carrier Finish: Nitride
Stock Name: Gauntlet Arms Special Operations Stock
Stock Material: Glass Filled Polymer
Stock Color: Black
Buffer Tube Compatibility: Mil-Spec, 6-Position, Carbine
Buffer Weight: 5.5 oz
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