Davidson Defense Needle 18-inch Rifle-Gas 1:7 22 ARC AR-15 M-Lok Handguard Rifle Upper Build Kit

Needle 18-inch .22 ARC AR-15 Upper Build Kit

The Needle is built around an 18-inch heavy .22 ARC barrel, machined from 416R stainless steel, paired with a Black Diamond Series slick-side billet upper receiver, made in the USA. It pairs an "Avalon" 15-inch M-LOK handguard with slant port cutouts and a stainless steel GI-type birdcage flash hider at the muzzle, running on a rifle-length gas system. BCG and charging handle are not included, leaving the buyer to supply those components separately.

Key Features

• 18-inch heavy .22 ARC barrel, 1:7 twist, 416R stainless steel
• Rifle-length gas system with micro low-profile steel gas block
• Black Diamond Series slick-side billet upper receiver, made in the USA
• "Avalon" 15-inch M-LOK handguard with slant port cutouts
• Stainless steel GI-type birdcage flash hider
• BCG and charging handle are not included.

Barrel and Gas System

The barrel runs 18 inches long, chambered in .22 ARC and machined from 416R stainless steel with a heavy profile. It carries a 1:7 twist rate and a 1/2x28 muzzle thread. Gas cycles back to the action through a rifle-length system, running a stainless steel rifle-length gas tube and a micro low-profile steel gas block sized to a .750-inch journal.

Upper Receiver and Handguard

The upper receiver is a Black Diamond Series slick-side billet unit, made in the USA and built without a forward assist. The ejection port carries a standard .223/5.56 door with its rod and spring installed. Over the barrel sits an "Avalon" 15-inch handguard, using an M-LOK attachment system with slant port cutouts along its length.

Muzzle Device

Capping the muzzle is a stainless steel GI-type birdcage flash hider. It threads onto the barrel's 1/2x28 pattern and is secured with the included stainless steel 1/2-inch crush washer.

Follow all manufacturer instructions and safe handling practices.

Ensure compliance with all applicable federal, state, and local laws.

BCG and charging handle are not included.