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

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

The Range Sentry is a .223 Wylde AR-15 Full Build Kit built around a 16-inch carbine-length gas platform. The kit centers on a 16-inch HBAR profile 4150 steel barrel with a black nitride finish, 1:8 right-hand twist rate, and 1/2x28 thread pitch, paired with an A2 GI birdcage flash hider and a black 1/2-inch 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 black anodized upper receiver features M4 feed ramps, a forward assist, and an ejection port door assembly, paired with a 15-inch freefloat M-LOK handguard in black. A USA-made complete AR-15 bolt carrier group compatible with 5.56 NATO, .223 Remington, .300 Blackout, and .350 Legend, and a Mil-Spec AR-15 M4 charging handle complete the upper side. The lower hardware includes a complete Mil-Spec AR-15 lower parts kit, a Mil-Spec heavy-duty 6-position aluminum carbine buffer tube, a standard 3 oz AR-15 carbine buffer, a USA-made standard AR-15 carbine recoil spring, a Mil-Spec AR-15 M16 receiver end plate, and an AR-15 carbine castle nut. The Special Operations adjustable AR-15 stock rounds out the kit. Lower receiver not included.

Key Features

• 16-inch HBAR profile 4150 steel barrel, black nitride finish, 1:8 right-hand 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 GI birdcage flash hider, 1/2x28, black 1/2-inch crush washer included
• 7075-T6 aluminum upper receiver, black anodized, M4 feed ramps, forward assist, ejection port door assembly
• 15-inch freefloat M-LOK handguard, black
• USA-made complete AR-15 bolt carrier group, 5.56 NATO and .223 Remington and .300 Blackout and .350 Legend compatible
• Mil-Spec AR-15 M4 charging handle
• Complete Mil-Spec AR-15 lower parts kit
• Mil-Spec heavy-duty 6-position aluminum carbine buffer tube
• Standard AR-15 carbine buffer, 3 oz
• Standard AR-15 carbine recoil spring, made in USA
• Mil-Spec AR-15 M16 receiver end plate
• AR-15 carbine castle nut
• Special Operations adjustable AR-15 stock

Perfect For

• Builders sourcing a complete .223 Wylde AR-15 full build kit with a 16-inch HBAR black nitride 4150 steel barrel, 7075-T6 black anodized upper receiver with forward assist, USA-made BCG compatible with multiple calibers, 15-inch freefloat M-LOK handguard, and Special Operations adjustable stock already included, pairing it with their own lower receiver
• Shooters building a 16-inch carbine-gas .223 Wylde rifle platform who want the USA-made BCG, charging handle, complete lower parts kit, and Special Operations adjustable stock covered in one kit with a 15-inch freefloat M-LOK handguard
• AR-15 builders who want a .223 Wylde full build kit with a USA-made BCG compatible with multiple calibers and a Special Operations adjustable stock without sourcing components separately

Barrel and Muzzle Device

The 16-inch HBAR profile barrel is chambered in .223 Wylde and constructed from 4150 steel with a black nitride finish. The twist rate is 1:8 right-hand and the thread pitch is 1/2x28, which matches the included A2 GI birdcage flash hider. A black 1/2-inch 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 a black anodized finish with M4 feed ramps, a forward assist, and an ejection port door assembly. 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.

Bolt Carrier Group and Charging Handle

The USA-made complete AR-15 bolt carrier group is compatible with 5.56 NATO, .223 Remington, .300 Blackout, and .350 Legend. A Mil-Spec AR-15 M4 charging handle is included to complete the upper component set.

Lower Parts Kit and Buffer System

The complete Mil-Spec AR-15 lower parts kit covers the internal lower receiver components. The buffer system includes a Mil-Spec heavy-duty 6-position aluminum carbine buffer tube, a standard 3 oz AR-15 carbine buffer, a USA-made standard AR-15 carbine recoil spring, a Mil-Spec AR-15 M16 receiver end plate, and an AR-15 carbine castle nut. The Special Operations adjustable AR-15 stock pairs with the included Mil-Spec carbine buffer tube and covers the rear stock interface for this build.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included.