Davidson Defense Rock Crawler 10.5-inch Carbine-Gas 1:7 5.56 NATO AR-15 Freefloat Keymod Handguard Pistol Upper Build Kit

Davidson Defense Rock Crawler AR-15 Pistol Upper Build Kit - 10.5-inch, 5.56 NATO, Carbine Gas, Freefloat Keymod Handguard

The Davidson Defense Rock Crawler is a 5.56 NATO AR-15 pistol upper build kit built around a USA-made 6061-T6 billet aluminum slick side upper receiver with a Type 3 Class 2 hardcoat anodized finish and anti-rotation cutout. The kit includes a 10.5-inch government profile Needle barrel in 416R stainless steel with a polished stainless finish, a 1:7 twist rate, and a 1/2x28 thread pitch, a freefloat Keymod handguard in black 6061-T6 aluminum, a micro low-profile 0.750 carbine gas block, and a GI Birdcage flash hider at 1/2x28. The slick side billet upper receiver, Needle barrel, and freefloat Keymod handguard form the complete upper assembly. BCG and charging handle are not included.

Key Features

• USA-made 6061-T6 billet aluminum slick side upper receiver, Type 3 Class 2 hardcoat anodized finish, anti-rotation cutout
• 10.5-inch government profile Needle barrel, 416R stainless steel, polished stainless finish
• 5.56 NATO
• 1:7 twist rate
• 1/2x28 thread pitch
• Carbine gas system
• Micro low-profile 0.750 gas block
• Freefloat Keymod handguard, 6061-T6 aluminum, black
• GI Birdcage flash hider, 1/2x28
• BCG not included
• Charging handle not included

Perfect For

• AR-15 pistol builders sourcing a 5.56 NATO upper build kit without BCG and charging handle in a compact 10.5-inch carbine configuration
• Shooters pairing this upper kit with an existing AR-15 lower assembly and their own BCG and charging handle
• Builders looking for a compact 5.56 NATO upper build kit with a polished stainless Needle barrel and USA-made slick side billet receiver

Needle Barrel and Gas System

The Needle barrel is a 10.5-inch government profile unit in 416R stainless steel with a polished stainless finish, chambered in 5.56 NATO with a 1:7 twist rate and a 1/2x28 thread pitch. The carbine-length gas system pairs with a micro low-profile 0.750 gas block to cover the gas regulation side of the upper. A GI Birdcage flash hider at 1/2x28 rounds out the muzzle end.

Upper Receiver and Handguard

The USA-made 6061-T6 billet slick side upper receiver features a Type 3 Class 2 hardcoat anodized finish and an anti-rotation cutout, forming the structural core of the upper assembly without a forward assist or dust cover. The freefloat Keymod handguard is 6061-T6 aluminum in black, surrounding the barrel without contact and providing Keymod mounting positions for compatible accessories.

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