Davidson Defense MK18-Inspired AR-15 Pistol, 10.5" .300 Blackout, Quad Rail, Carry Handle, SBA3 Brace, Black

MK18-Inspired AR-15 Complete Pistol, 10.5-inch .300 Blackout, Quad Rail, Carry Handle, SBA3 Brace, Black

The MK18-inspired AR-15 complete pistol is a .300 AAC Blackout platform built around a compact 10.5-inch carbine-length gas configuration. The barrel is a 10.5-inch government profile chambered in .300 Blackout with a 5/8x24 thread pitch, paired with a phosphate A2 flash hider. An F-mark front sight base is included on the front end. The flat top upper receiver features a Picatinny top rail, forward assist, and dust cover, with a detachable carry handle rear sight included. A carbine-length quad rail handguard in black provides Picatinny rail sections on all four sides for accessory mounting. A complete AR-15 bolt carrier group compatible with .300 AAC Blackout, 5.56 NATO, and .223 Remington, and a Mil-Spec charging handle complete the upper side. The forged AR-15 lower receiver is Type III hardcoat anodized black, paired with a Mil-Spec lower parts kit and an A2-style pistol grip in black. A Mil-Spec carbine buffer tube and carbine buffer system cover the rear hardware. The SB Tactical SBA3 adjustable pistol stabilizing brace in black is included. A .300 AAC Blackout and 5.56 NATO compatible AR-15 pattern magazine is included.

Key Features

• 10.5-inch government profile barrel, .300 Blackout, 5/8x24 thread pitch
• Carbine-length gas system
• F-mark front sight base
• Phosphate A2 flash hider, 5/8x24
• Flat top AR-15 upper receiver, Picatinny top rail, forward assist, dust cover
• Detachable carry handle rear sight
• Carbine-length quad rail handguard, black, Picatinny rail on all four sides
• Complete AR-15 bolt carrier group, .300 AAC Blackout and 5.56 NATO and .223 Remington compatible
• Mil-Spec charging handle
• Forged AR-15 lower receiver, Type III hardcoat anodized black
• Mil-Spec lower parts kit
• A2-style pistol grip, black
• Mil-Spec carbine buffer tube
• Carbine buffer system
• SB Tactical SBA3 adjustable pistol stabilizing brace, black
• AR-15 pattern magazine, .300 AAC Blackout and 5.56 NATO compatible

Perfect For

• Shooters looking for a complete .300 Blackout AR-15 pistol with an MK18-inspired configuration, carry handle, and SBA3 brace already included
• Builders who want a quad rail handguard with Picatinny rail on all four sides and a detachable carry handle rear sight in a ready-to-go complete pistol
• AR-15 pistol buyers who want a compact 10.5-inch .300 Blackout platform with a magazine included without sourcing components separately

Barrel and Front End Components

The 10.5-inch government profile barrel is chambered in .300 Blackout with a 5/8x24 thread pitch, which matches the included phosphate A2 flash hider. An F-mark front sight base is included on the front end and pairs with the detachable carry handle rear sight to provide a complete iron sight system. The carbine-length gas system covers the front end gas configuration on this platform.

Upper Receiver and Handguard

The flat top AR-15 upper receiver features a Picatinny top rail, forward assist, and dust cover. A detachable carry handle rear sight is included and mounts to the Picatinny top rail. The carbine-length quad rail handguard is black and provides Picatinny rail sections on all four sides for light, optic, and accessory mounting. These components define the exterior structure of the upper assembly on this MK18-inspired platform.

Bolt Carrier Group and Charging Handle

The complete AR-15 bolt carrier group is compatible with .300 AAC Blackout, 5.56 NATO, and .223 Remington. A Mil-Spec charging handle is included to complete the upper component set.

Lower Receiver and Lower Components

The forged AR-15 lower receiver is Type III hardcoat anodized black. The Mil-Spec lower parts kit covers the internal lower components, and the A2-style pistol grip in black covers the exterior grip interface. The Mil-Spec carbine buffer tube and carbine buffer system address the rear hardware, and the SB Tactical SBA3 adjustable pistol stabilizing brace in black rounds out the lower assembly.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Verify local and state laws regarding pistol brace use and classification.