Davidson Defense Droid 7.5-inch Pistol-Gas 1:8 .300 BLK AR-15 Freefloat Keymod Handguard Pistol Full Build Kit, SBR Ready

Droid 7.5-inch Pistol-Gas 1:8 .300 BLK AR-15 Freefloat Keymod Pistol Full Build Kit, SBR Ready

The Droid is a .300 AAC Blackout AR-15 Full Build Kit configured for the SBR Ready designation, built around a compact 7.5-inch pistol-length gas platform. The kit centers on a 7.5-inch HBAR profile phosphate barrel with a 1:8 twist rate and 5/8x24 thread pitch, paired with a muzzle-mounted fake suppressor and a black 5/8-inch crush washer. A micro low-profile steel gas block at 0.750 diameter and a pistol-length gas tube are included on the front end. The 7075-T6 aluminum hardcoat anodized upper receiver features M4 feed ramps, a forward assist, and an ejection port door assembly, paired with a 12-inch Trinity Force KMX KeyMod freefloat handguard. A USA-made complete AR-15 bolt carrier group compatible with .223 Remington, 5.56 NATO, .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 receiver end plate, and a Mil-Spec AR-15 castle nut. This kit ships without a brace and is intended for customers selecting their own final setup. Lower receiver not included.

Key Features

• 7.5-inch HBAR profile phosphate barrel, 1:8 twist, 5/8x24 thread pitch, .300 AAC Blackout
• Pistol-length gas system
• Pistol-length gas tube
• Micro low-profile steel gas block, 0.750
• Muzzle-mounted fake suppressor, 5/8x24, black 5/8-inch crush washer included
• 7075-T6 aluminum upper receiver, hardcoat anodized, M4 feed ramps, forward assist, ejection port door assembly
• 12-inch Trinity Force KMX KeyMod freefloat handguard
• USA-made complete AR-15 bolt carrier group, .223 Remington and 5.56 NATO 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 receiver end plate
• Mil-Spec AR-15 castle nut
• SBR Ready configuration

Perfect For

• Builders sourcing a complete .300 AAC Blackout AR-15 pistol full build kit with a 7075-T6 hardcoat anodized upper receiver with forward assist, 7.5-inch HBAR phosphate barrel, USA-made BCG, and 12-inch Trinity Force KMX KeyMod freefloat handguard already included, pairing it with their own lower receiver and selecting their own rear brace or stock
• Shooters building a compact 7.5-inch pistol-gas .300 BLK platform who want the USA-made BCG, charging handle, and complete buffer system covered without a rear interface commitment
• AR-15 pistol builders who want a .300 AAC Blackout full build kit with a USA-made BCG compatible with multiple calibers and a muzzle-mounted fake suppressor at 5/8x24 in an SBR Ready configuration without sourcing components separately

Barrel and Muzzle Device

The 7.5-inch HBAR profile barrel is chambered in .300 AAC Blackout with a phosphate finish, 1:8 twist rate, and 5/8x24 thread pitch, which matches the included muzzle-mounted fake suppressor. A black 5/8-inch crush washer, a micro low-profile steel gas block at 0.750 diameter, and a pistol-length gas tube cover the front end gas configuration on this pistol-length platform.

Upper Receiver and Handguard

The 7075-T6 aluminum upper receiver carries a hardcoat anodized finish with M4 feed ramps, a forward assist, and an ejection port door assembly. The 12-inch Trinity Force KMX KeyMod freefloat 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 .223 Remington, 5.56 NATO, .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 AR-15 carbine buffer, a USA-made standard AR-15 carbine recoil spring, a Mil-Spec AR-15 receiver end plate, and a Mil-Spec AR-15 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.