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

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

The Overlander 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 government profile barrel in 416R stainless steel with a polished stainless finish, 1:7 twist rate, and 1/2x28 thread pitch, paired with a GI A2 birdcage flash hider and a black 1/2-inch crush washer. A carbine-length gas tube is included on the front end. The upper receiver is a USA-made 6061 slick side billet design in 6061-T6 aluminum with a Type III Class 2 hardcoat anodized finish and an anti-rotation cutout, paired with a 10-inch freefloat M-LOK handguard. A USA-made AR-15 complete 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 buffer tube, a standard 3 oz carbine buffer, a USA-made standard AR-15 carbine recoil spring, an AR-15 M16 Mil-Spec receiver end plate, and an AR-15 carbine castle nut. The SB Tactical SBA3 adjustable pistol stabilizing brace in black is included. Lower receiver not included.

Key Features

• 10.5-inch government profile barrel, 416R stainless steel, polished stainless finish, 1:7 twist, 1/2x28 thread pitch
• Carbine-length gas system
• Carbine-length gas tube
• GI A2 birdcage flash hider, 1/2x28, black crush washer included
• USA-made 6061 slick side billet upper receiver, 6061-T6 aluminum, Type III Class 2 hardcoat anodized, anti-rotation cutout
• 10-inch freefloat M-LOK handguard
• USA-made AR-15 complete bolt carrier group, 5.56 NATO and .223 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 buffer tube
• Standard carbine buffer, 3 oz
• Standard AR-15 carbine recoil spring, made in USA
• AR-15 M16 Mil-Spec receiver end plate
• AR-15 carbine castle nut
• SB Tactical SBA3 adjustable pistol stabilizing brace, black

Perfect For

• Builders sourcing a complete 5.56 NATO AR-15 pistol kit with a polished stainless 416R barrel, USA-made slick side billet upper, and SBA3 adjustable brace already included, pairing it with their own lower receiver
• Shooters building a compact 10.5-inch carbine-gas pistol platform who want a USA-made BCG, freefloat M-LOK handguard, and SB Tactical SBA3 adjustable brace covered in one kit
• AR-15 builders who want a 416R stainless government profile barrel and complete lower parts kit included without sourcing components separately

Barrel and Muzzle Device

The 10.5-inch government profile barrel is chambered in 5.56 NATO and constructed from 416R stainless steel with a polished stainless finish. The twist rate is 1:7 and the thread pitch is 1/2x28, which matches the included GI A2 birdcage flash hider. A black 1/2-inch crush washer and a carbine-length gas tube cover the front end gas configuration on this carbine-length platform.

Slick Side Billet Upper Receiver and Handguard

The USA-made 6061 slick side billet upper receiver is 6061-T6 aluminum with a Type III Class 2 hardcoat anodized finish and an anti-rotation cutout. The slick side design removes the forward assist housing from the upper receiver body for a clean exterior profile. The 10-inch freefloat M-LOK handguard provides 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 AR-15 complete 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 buffer tube, a standard 3 oz carbine buffer, a USA-made standard AR-15 carbine recoil spring, an AR-15 M16 Mil-Spec receiver end plate, and an AR-15 carbine castle nut. The SB Tactical SBA3 adjustable pistol stabilizing brace in black rounds out the kit, providing an adjustable rear interface for the pistol platform.

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.