Davidson Defense Xiphos 10.5-inch 1:10 9MM AR-9 Freefloat KeyMod Handguard Pistol Upper Build Kit

Xiphos 10.5-inch 1:10 9mm AR-9 Freefloat KeyMod Pistol Upper Build Kit

The Xiphos is a 9mm AR-9 Upper Build Kit 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 twist rate, and 1/2x36 thread pitch, paired with a black 9mm A2 birdcage flash hider and a black crush washer. The Vertex Enhanced Pistol Caliber dedicated AR-9 billet aluminum anodized upper receiver features a full-length Picatinny top rail, paired with a 10-inch ultra-slim KeyMod freefloat handguard in black. BCG and charging handle are not included.

Key Features

• 10.5-inch medium profile 4150 CrMoV steel barrel, nitride finish, 1:10 twist, 1/2x36 thread pitch, 9mm
• Direct blowback platform
• Black 9mm A2 birdcage flash hider, 1/2x36, black crush washer included
• Vertex Enhanced Pistol Caliber dedicated AR-9 billet aluminum upper receiver, anodized, full-length Picatinny top rail
• 10-inch ultra-slim KeyMod freefloat handguard, black
• BCG and charging handle not included

Perfect For

• AR-9 pistol builders sourcing a compact 9mm upper build kit with a Vertex Enhanced Pistol Caliber dedicated AR-9 billet upper receiver, 10.5-inch nitride 4150 CrMoV barrel, and ultra-slim KeyMod freefloat handguard with full-length Picatinny top rail, pairing it with their own AR-9 bolt carrier group and charging handle
• Shooters building a compact 10.5-inch 9mm direct blowback AR-9 pistol platform who prefer to select their own BCG while having the nitride 4150 CrMoV barrel, dedicated AR-9 billet upper receiver, and ultra-slim KeyMod freefloat handguard covered in one kit
• AR-9 pistol builders who want a 9mm upper build kit with a dedicated AR-9 billet upper receiver and a 10-inch ultra-slim KeyMod freefloat handguard with full-length Picatinny top rail 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 and the thread pitch is 1/2x36, which matches the included black 9mm A2 birdcage flash hider. A black 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 Vertex Enhanced Pistol Caliber dedicated AR-9 billet aluminum upper receiver carries an anodized finish with a full-length Picatinny top rail for optics and accessory mounting. The 10-inch ultra-slim KeyMod freefloat handguard is black with KeyMod 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.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. BCG and charging handle are not included. Verify compatibility with your specific 9mm AR-9 lower receiver and magazine pattern before use.