Davidson Defense Warden 10.5-inch Carbine-Gas 1:7 5.56 NATO AR-15 Freefloat Keymod Handguard Pistol Full Build Kit, SBR Ready

Warden 10.5-inch Carbine-Gas 1:7 5.56 NATO AR-15 Freefloat Keymod Pistol Full Build Kit, SBR Ready

The Warden is a 5.56 NATO AR-15 Full Build Kit configured for the SBR Ready designation, built around a compact 10.5-inch carbine-length gas platform. The kit centers on a 10.5-inch M4 contour phosphate barrel with a 1:7 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 anodized upper receiver features M4 feed ramps, a forward assist, and an ejection port door assembly, paired with a 10-inch Trinity Force KMX freefloat KeyMod handguard. 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 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. This kit ships without a brace and is intended for customers selecting their own final setup. Lower receiver not included.

Key Features

• 10.5-inch M4 contour phosphate barrel, 1:7 twist, 1/2x28 thread pitch, 5.56 NATO
• 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, anodized, M4 feed ramps, forward assist, ejection port door assembly
• 10-inch Trinity Force KMX freefloat KeyMod handguard
• 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 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
• SBR Ready configuration

Perfect For

• Builders sourcing a complete 5.56 NATO AR-15 pistol full build kit with a 7075-T6 anodized upper receiver with forward assist, 10.5-inch phosphate M4 contour barrel, USA-made BCG compatible with multiple calibers, and 10-inch Trinity Force KMX freefloat KeyMod handguard already included, pairing it with their own lower receiver and selecting their own rear brace or stock
• Shooters building a compact 10.5-inch carbine-gas 5.56 NATO platform who want the USA-made BCG, charging handle, and complete buffer system covered without a rear interface commitment and a Trinity Force KMX freefloat KeyMod handguard
• AR-15 pistol builders who want a 5.56 NATO full build kit with a USA-made BCG compatible with multiple calibers and a Trinity Force KMX freefloat KeyMod handguard in an SBR Ready configuration without sourcing components separately

Barrel and Muzzle Device

The 10.5-inch M4 contour barrel is chambered in 5.56 NATO with a phosphate finish, 1:7 twist rate, and 1/2x28 thread pitch, 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 an anodized finish with M4 feed ramps, a forward assist, and an ejection port door assembly. The 10-inch Trinity Force KMX freefloat KeyMod handguard features KeyMod attachment points along the body for accessory mounting. These two components define the exterior structure of the upper assembly on this AR-15 pistol 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.

SBR Ready Configuration

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 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. This kit ships without a brace, with the brace or stock selection remaining with the buyer.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Ships without a brace. Do not attach a stock unless compliant with applicable laws. Lower receiver not included.