Davidson Defense Darksight 10.5-inch 1:10 9MM AR-9 Freefloat M-Lok Handguard Pistol Complete Upper Build

Darksight 10.5-inch 1:10 9mm AR-9 Freefloat M-LOK Pistol Complete Upper

The Darksight is a 9mm AR-9 Complete Upper built around a compact 10.5-inch direct blowback platform. The kit centers on a 10.5-inch medium profile 4150 CrMoV steel barrel with a nitride finish, 1:10 right-hand twist rate, and 1/2x36 thread pitch, paired with a 9mm A2 birdcage flash hider at 1/2x36 and a black 1/2-inch crush washer. The AR-15 billet upper receiver for pistol caliber builds in black is paired with a 7-inch freefloat M-LOK handguard in black with a partial Picatinny rail section. A complete 9mm nitride bolt carrier group in 8620 alloy steel with an external extractor compatible with Glock and Colt pattern magazines, and a Mil-Spec AR-15 M4 charging handle complete the upper component set.

Key Features

• 10.5-inch medium profile 4150 CrMoV steel barrel, nitride finish, 1:10 right-hand twist, 1/2x36 thread pitch, 9mm
• Direct blowback platform
• 9mm A2 birdcage flash hider, 1/2x36, black 1/2-inch crush washer included
• AR-15 billet upper receiver for pistol caliber builds, black
• 7-inch freefloat M-LOK handguard, black, partial Picatinny rail section
• Complete 9mm nitride bolt carrier group, 8620 alloy steel, external extractor, Glock and Colt pattern magazine compatible
• Mil-Spec AR-15 M4 charging handle

Perfect For

• AR-9 pistol builders sourcing a complete 9mm blowback upper with an AR-15 billet upper receiver for pistol caliber builds, 10.5-inch nitride 4150 CrMoV barrel, 7-inch freefloat M-LOK handguard with partial Picatinny rail section, and nitride BCG compatible with Glock and Colt pattern magazines ready to pair with their own lower receiver
• Shooters building a compact 10.5-inch 9mm direct blowback AR-9 pistol platform who want the AR-9 BCG and charging handle covered in one complete upper with a billet pistol caliber upper receiver and freefloat M-LOK handguard with partial Picatinny rail section
• AR-9 PCC pistol builders who want a complete 9mm blowback upper with a Glock and Colt pattern magazine compatible BCG and a 7-inch freefloat M-LOK handguard with a partial Picatinny rail section without sourcing components separately

Barrel and Muzzle Device

The 10.5-inch medium profile barrel is chambered in 9mm and constructed from 4150 CrMoV steel with a nitride finish. The twist rate is 1:10 right-hand and the thread pitch is 1/2x36, which matches the included 9mm A2 birdcage flash hider. A black 1/2-inch crush washer is included. The direct blowback platform design addresses the 9mm cartridge in an AR-9 pistol caliber build without a gas system.

Upper Receiver and Handguard

The AR-15 billet upper receiver for pistol caliber builds carries a black finish and is designed around the AR-9 pistol caliber platform. The 7-inch freefloat M-LOK handguard is black with a partial Picatinny rail section and M-LOK attachment points along the body for accessory mounting. These two components define the exterior structure of the upper assembly on this AR-9 pistol platform.

Bolt Carrier Group and Charging Handle

The complete 9mm nitride bolt carrier group is 8620 alloy steel with a nitride finish and features an external extractor compatible with both Glock and Colt pattern magazines. A Mil-Spec AR-15 M4 charging handle is included to complete the upper component set.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Verify compatibility with your specific 9mm AR-9 lower receiver and magazine pattern before use.