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

Marauder 10.5-inch 1:10 9mm AR-9 Freefloat M-LOK Pistol Upper Build Kit

The Marauder is a 9mm AR-9 Upper Build Kit built around a 10.5-inch platform. The kit centers on a 10.5-inch Bear Creek Arsenal steel barrel with a black nitride finish, 1:10 twist rate, and 1/2x36 thread pitch, paired with a black A2 birdcage flash hider and a black crush washer. The upper receiver is a Vertex Enhanced pistol caliber billet aluminum PCC upper receiver with a black anodized finish, paired with a 10-inch freefloat M-LOK handguard in black with a full-length Picatinny top rail. A barrel nut is included. BCG and charging handle are not included.

Key Features

• 10.5-inch Bear Creek Arsenal steel barrel, black nitride finish, 1:10 twist, 1/2x36 thread pitch, 9mm
• A2 birdcage flash hider, black, 1/2x36, black crush washer included
• Vertex Enhanced pistol caliber billet aluminum PCC upper receiver, black anodized, AR-9 and PCC compatible
• 10-inch freefloat M-LOK handguard, black, full-length Picatinny top rail
• Barrel nut included
• BCG and charging handle not included

Perfect For

• Builders sourcing a complete 9mm AR-9 pistol upper build kit with a Bear Creek Arsenal nitride barrel and Vertex Enhanced PCC billet upper, pairing it with their own bolt carrier group and charging handle
• Shooters building a compact 10.5-inch 9mm pistol platform who prefer to select their own BCG while having the nitride barrel, dedicated PCC upper, and freefloat M-LOK handguard covered in one kit
• AR-9 builders who want a 10-inch freefloat M-LOK handguard with a full-length Picatinny top rail on a dedicated PCC billet upper without sourcing components separately

Barrel and Muzzle Device

The 10.5-inch Bear Creek Arsenal barrel is chambered in 9mm and constructed from steel with a black nitride finish. The twist rate is 1:10 and the thread pitch is 1/2x36, which matches the included black A2 birdcage flash hider. A black crush washer is included with the muzzle device.

Vertex Enhanced PCC Upper Receiver and Handguard

The Vertex Enhanced pistol caliber billet aluminum PCC upper receiver carries a black anodized finish and is purpose-built around the AR-9 and pistol caliber carbine platform. The 10-inch freefloat M-LOK handguard is black with a full-length Picatinny top rail and M-LOK attachment points along the body for accessory mounting. A barrel nut is included. These two components define the exterior structure of the upper assembly on this AR-9 platform.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. BCG and charging handle are not included.