Davidson Defense Sanctuary 16-inch 1:10 9MM AR-9 Freefloat M-Lok Handguard Rifle Complete Upper Build

Sanctuary 16-inch 1:10 9mm AR-9 Freefloat M-LOK Complete Upper

The Sanctuary is a 9mm AR-9 Complete Upper built around a 16-inch platform. The kit centers on a 16-inch M4 profile 416R stainless steel barrel with a 1:10 twist rate and 1/2x36 thread pitch, paired with a KAK Industry 9mm mini compensator and a crush washer. The upper receiver is a Vertex Enhanced pistol caliber billet aluminum PCC upper receiver, paired with a 15-inch freefloat M-LOK handguard in black with integrated QD mounts, a full-length Picatinny top rail, and M-LOK slots along the body for accessory mounting. A 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

• 16-inch M4 profile 416R stainless steel barrel, 1:10 twist, 1/2x36 thread pitch
• KAK Industry 9mm mini compensator, crush washer included
• Vertex Enhanced pistol caliber billet aluminum PCC upper receiver
• 15-inch freefloat M-LOK handguard, black, integrated QD mounts, full-length Picatinny top rail
• 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

• Builders sourcing a complete 9mm AR-9 upper with a Vertex Enhanced PCC billet upper receiver, KAK Industry 9mm mini compensator, and BCG already included, pairing it with their own lower receiver
• Shooters building a 16-inch 9mm rifle platform who want Glock and Colt pattern magazine compatibility and the BCG and charging handle covered in one complete upper with integrated QD mounts
• AR-9 builders who want a 15-inch freefloat M-LOK handguard with a full-length Picatinny top rail and integrated QD mounts on a dedicated PCC billet upper without sourcing components separately

Barrel and Muzzle Device

The 16-inch M4 profile barrel is chambered in 9mm and constructed from 416R stainless steel with a 1:10 twist rate and 1/2x36 thread pitch. The KAK Industry 9mm mini compensator is included and is spec-matched to the 1/2x36 thread pitch of this 9mm barrel. A 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 is purpose-built around the AR-9 platform. The 15-inch freefloat M-LOK handguard is black with a full-length Picatinny top rail, integrated QD mounts, and M-LOK slots along the body for accessory mounting. These two components define the exterior structure of the upper assembly on this AR-9 platform.

9mm Bolt Carrier Group and Charging Handle

The 9mm nitride bolt carrier group is 8620 alloy steel with 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.