Davidson Defense Fleetbane w/SBA3 Brace 10.5-inch Carbine-Gas 1:7 5.56 NATO AR-15 Freefloat M-Lok Handguard Pistol Full Build Kit

Fleetbane SBA3 Brace 10.5-inch Carbine-Gas 1:7 5.56 NATO AR-15 Freefloat M-LOK Pistol Full Build Kit

The Fleetbane is a 5.56 NATO AR-15 Full Build Kit built around a compact 10.5-inch carbine-length gas platform. The kit centers on a 10.5-inch M4 contour stainless steel barrel with a 1:7 twist rate and 1/2x28 thread pitch, paired with a stainless steel GI style birdcage flash hider and a stainless steel 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 hardcoat 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 M-LOK 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 carbine buffer, a USA-made standard carbine recoil spring, a Mil-Spec AR-15 M16 receiver end plate, and a Mil-Spec AR-15 castle nut. The SB Tactical SBA3 adjustable pistol stabilizing brace in black is included. Lower receiver not included.

Key Features

• 10.5-inch M4 contour stainless steel 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
• Stainless steel GI style birdcage flash hider, 1/2x28, stainless steel crush washer included
• 7075-T6 aluminum upper receiver, hardcoat anodized, M4 feed ramps, forward assist, ejection port door assembly
• 10-inch Trinity Force KMX freefloat M-LOK 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 carbine buffer, 3 oz
• Standard carbine recoil spring, made in USA
• Mil-Spec AR-15 M16 receiver end plate
• Mil-Spec AR-15 castle nut
• SB Tactical SBA3 adjustable pistol stabilizing brace, black

Perfect For

• Builders sourcing a complete 5.56 NATO AR-15 pistol full build kit with a 7075-T6 hardcoat anodized upper receiver with forward assist, 10.5-inch M4 contour stainless steel barrel, USA-made BCG compatible with multiple calibers, 10-inch Trinity Force KMX freefloat M-LOK handguard, and SBA3 adjustable brace on a Mil-Spec carbine buffer tube already included, pairing it with their own lower receiver
• Shooters building a compact 10.5-inch carbine-gas 5.56 NATO platform who want the USA-made BCG, charging handle, complete lower parts kit, and SBA3 adjustable brace covered in one kit with a stainless steel barrel and stainless steel gas tube
• AR-15 pistol builders who want a 5.56 NATO full build kit with a USA-made BCG compatible with multiple calibers and an SBA3 adjustable brace without sourcing components separately

Barrel and Muzzle Device

The 10.5-inch M4 contour barrel is chambered in 5.56 NATO and constructed from stainless steel with a 1:7 twist rate and 1/2x28 thread pitch, which matches the included stainless steel GI style birdcage flash hider. A stainless steel 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 hardcoat anodized finish with M4 feed ramps, a forward assist, and an ejection port door assembly. The 10-inch Trinity Force KMX freefloat M-LOK handguard features 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 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.

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 carbine buffer, a USA-made standard carbine recoil spring, a Mil-Spec AR-15 M16 receiver end plate, and a Mil-Spec AR-15 castle nut. The SB Tactical SBA3 adjustable pistol stabilizing brace in black pairs with the included Mil-Spec carbine buffer tube and covers the rear brace interface for this pistol lower build kit.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included. Verify local and state laws regarding pistol brace use and classification.