Davidson Defense Range Sentry 16-inch Carbine-Gas 1:8 .223 Wylde AR-15 Freefloat M-Lok Handguard Rifle Upper Build Kit

Range Sentry 16-inch Carbine-Gas 1:8 .223 Wylde AR-15 Freefloat M-LOK Rifle Upper Build Kit

The Range Sentry is a .223 Wylde AR-15 Upper Build Kit built around a 16-inch carbine-length gas platform. The kit centers on a 16-inch straight fluted HBAR profile 4150 steel barrel with a black nitride finish, 1:8 twist rate, and 1/2x28 thread pitch, paired with an A2 birdcage flash hider and a black crush washer. A micro low-profile steel gas block at 0.750 diameter and a carbine-length stainless steel gas tube are included on the front end. The 7075-T6 aluminum anodized upper receiver features M4 feed ramps, a forward assist, and an ejection port door with rod and spring, paired with a 15-inch freefloat M-LOK handguard in black. BCG and charging handle are not included.

Key Features

• 16-inch straight fluted HBAR profile 4150 steel barrel, black nitride finish, 1:8 twist, 1/2x28 thread pitch, .223 Wylde
• Carbine-length gas system
• Carbine-length stainless steel gas tube
• Micro low-profile steel gas block, 0.750
• A2 birdcage flash hider, 1/2x28, black crush washer included
• 7075-T6 aluminum upper receiver, anodized, M4 feed ramps, forward assist, ejection port door with rod and spring
• 15-inch freefloat M-LOK handguard, black
• BCG and charging handle not included

Perfect For

• Builders sourcing a complete .223 Wylde AR-15 upper build kit with a 16-inch straight fluted HBAR nitride barrel, micro low-profile gas block, anodized upper receiver with forward assist, and 15-inch freefloat M-LOK handguard, pairing it with their own bolt carrier group and charging handle
• Shooters building a 16-inch carbine-gas .223 Wylde rifle platform who prefer to select their own BCG while having the straight fluted HBAR nitride barrel, anodized upper receiver with M4 feed ramps, and freefloat M-LOK handguard covered in one kit
• AR-15 builders who want a .223 Wylde upper build kit with a straight fluted HBAR barrel, carbine-length stainless steel gas tube, and a 15-inch freefloat M-LOK handguard without sourcing components separately

Barrel and Muzzle Device

The 16-inch straight fluted HBAR profile barrel is chambered in .223 Wylde and constructed from 4150 steel with a black nitride finish. The twist rate is 1:8 and the thread pitch is 1/2x28, which matches the included A2 birdcage flash hider. A black crush washer, a micro low-profile steel gas block at 0.750 diameter, and a carbine-length stainless steel gas tube cover the front end gas configuration on this carbine-length platform.

Upper Receiver and Handguard

The 7075-T6 aluminum upper receiver carries an anodized finish with M4 feed ramps, a forward assist, and an ejection port door assembly including door, rod, and spring. The 15-inch freefloat M-LOK handguard is black with M-LOK attachment points along the body for accessory mounting. These two components define the exterior structure of the upper assembly on this AR-15 platform.

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