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

Garrison 16-inch Carbine-Gas 1:8 .223 Wylde AR-15 Freefloat Tubular M-LOK Upper Build Kit

The Garrison 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 Tactical Match M4 contour cryogenically treated phosphate barrel with a 1:8 twist rate and 1/2x28 thread pitch, paired with an A2 GI birdcage flash hider compatible with 5.56 NATO and .223 Remington, 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, an ejection port door with rod and spring, and a forward assist assembly, paired with a 15-inch freefloat tubular M-LOK handguard in aluminum with a suppressor-ready internal diameter of 1.77 inches. BCG and charging handle are not included.

Key Features

• 16-inch Tactical Match M4 contour cryogenically treated phosphate barrel, 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 GI birdcage flash hider, 1/2x28, 5.56 NATO and .223 Remington compatible, black crush washer included
• 7075-T6 aluminum upper receiver, anodized, M4 feed ramps, ejection port door with rod and spring, forward assist assembly
• 15-inch freefloat tubular M-LOK handguard, aluminum, 1.77-inch internal diameter, suppressor-ready design
• BCG and charging handle not included

Perfect For

• Builders sourcing a complete .223 Wylde AR-15 upper build kit with a cryogenically treated Tactical Match barrel, 7075-T6 anodized upper receiver, and 15-inch suppressor-ready tubular M-LOK handguard, pairing it with their own bolt carrier group and charging handle
• Shooters building a 16-inch carbine-gas .223 Wylde platform who prefer to select their own BCG while having the cryogenically treated Tactical Match phosphate barrel, anodized upper receiver with forward assist, and suppressor-ready freefloat tubular handguard covered in one kit
• AR-15 builders who want a .223 Wylde upper build kit with a cryogenically treated Tactical Match barrel and suppressor-ready 1.77-inch internal diameter tubular M-LOK handguard with an A2 birdcage flash hider at 1/2x28 without sourcing components separately

Barrel and Muzzle Device

The 16-inch Tactical Match M4 contour barrel is chambered in .223 Wylde and finished in phosphate with cryogenic treatment applied to the barrel steel. Cryogenic treatment subjects the barrel steel to deep cold temperatures to relieve residual stress in the metal structure. The twist rate is 1:8 and the thread pitch is 1/2x28, which matches the included A2 GI birdcage flash hider. The flash hider is compatible with 5.56 NATO and .223 Remington. 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, an ejection port door with rod and spring, and a forward assist assembly. The 15-inch freefloat tubular M-LOK handguard is aluminum with a 1.77-inch internal diameter suppressor-ready design and M-LOK attachment points along the body for accessory mounting. The suppressor-ready internal diameter accommodates a suppressor body within the handguard on compatible suppressor configurations. 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.