Davidson Defense Lightshow Gold 4.5-inch 1:10 9MM AR-9 Freefloat M-Lok Handguard Pistol Complete Upper Build

Lightshow Gold 4.5-inch 1:10 9mm AR-9 Freefloat M-LOK Pistol Complete Upper

The Lightshow Gold is a 9mm AR-9 Complete Upper built around a compact 4.5-inch direct blowback platform. The kit centers on a 4.5-inch medium profile 4150 CrMoV steel barrel with a nitride finish, 1:10 twist rate, and 1/2x36 thread pitch, paired with a black A2 birdcage flash hider and a black crush washer. The 6061 billet pistol caliber AR-15 upper receiver carries a black anodized finish, paired with a 4-inch Guntec Honeycomb freefloat M-LOK handguard in gold featuring honeycomb lightening cuts and M-LOK accessory mounting points. A complete 9mm nitride bolt carrier group in 8620 alloy steel with an external extractor compatible with Glock and Colt pattern magazines in a direct blowback configuration, and a Mil-Spec AR-15 M4 charging handle complete the upper component set.

Key Features

• 4.5-inch medium profile 4150 CrMoV steel barrel, nitride finish, 1:10 twist, 1/2x36 thread pitch, 9mm
• Direct blowback platform
• Black A2 birdcage flash hider, 1/2x36, black crush washer included
• 6061 billet pistol caliber AR-15 upper receiver, black anodized
• 4-inch Guntec Honeycomb freefloat M-LOK handguard, gold, honeycomb lightening cuts, M-LOK accessory mounting
• Complete 9mm nitride bolt carrier group, 8620 alloy steel, external extractor, Glock and Colt pattern magazine compatible, direct blowback
• Mil-Spec AR-15 M4 charging handle

Perfect For

• AR-9 pistol builders sourcing a complete 9mm blowback upper with a 6061 billet pistol caliber upper receiver, 4.5-inch nitride 4150 CrMoV barrel, gold Guntec Honeycomb freefloat M-LOK handguard, and nitride BCG compatible with Glock and Colt pattern magazines ready to pair with their own lower receiver
• Shooters building a compact 4.5-inch 9mm direct blowback AR-9 pistol platform who want the AR-9 BCG and charging handle covered in one complete upper with a distinctive gold Guntec Honeycomb freefloat M-LOK handguard
• AR-9 pistol builders who want a complete 9mm blowback upper with a Glock and Colt pattern magazine compatible BCG and a gold Guntec Honeycomb freefloat M-LOK handguard for a distinctive black and gold two-tone appearance without sourcing components separately

Barrel and Muzzle Device

The 4.5-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 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 6061 billet pistol caliber AR-15 upper receiver carries a black anodized finish. The 4-inch Guntec Honeycomb freefloat M-LOK handguard is gold with honeycomb lightening cuts along the body and M-LOK accessory mounting points. The gold handguard provides a distinctive color contrast against the black anodized upper receiver. 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 in a direct blowback configuration. 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.