Davidson Defense Dwarf King AR-15 Pistol Build Kit, 4.5-Inch 1:7 300 BLK, SBA3 Brace, Witt Dirty .30

Dwarf King w/SBA3 Brace 4.5-inch 1:7 300 BLK AR-15 M-Lok Pistol Full Build Kit with Witt Machine The Dirty .30 Suppressor

This is a complete .300 Blackout AR-15 pistol build kit that ships with everything except the lower receiver. You get a 4.5-inch Bear Creek Arsenal barrel, a Panhead billet upper receiver, a 7-inch M-LOK handguard, SBA3 brace, and a Witt Machine The Dirty .30 suppressor ready to go. The adjustable gas block lets you dial in cycling for subsonic or supersonic ammunition. This is a serious suppressed pistol platform built for shooters who want precision in a compact package.

Key Features

• 4.5-inch 1:7 twist barrel in .300 Blackout with micro-length gas system
• Adjustable skeletonized gas block for load tuning
• 7-inch M-LOK handguard with 1.77-inch internal diameter for suppressor clearance
• Complete bolt carrier group, lower parts kit, and buffer system included
• SBA3 adjustable pistol brace in black
• Witt Machine The Dirty .30 suppressor with 416 stainless steel construction
• Panhead billet upper receiver with enlarged .458-style ejection port
• Lower receiver not included

Perfect For

• Shooters building a suppressed .300 Blackout pistol platform
• Hunters seeking a compact, quiet rifle alternative
• Builders wanting a micro-length gas system for subsonic ammunition
• Users prioritizing suppressor-ready handguard design
• Precision shooters who need adjustable gas tuning

Micro-Length Gas System Design

The micro-length gas tube and adjustable gas block work together to optimize cycling with .300 Blackout ammunition. This platform handles both subsonic and supersonic loads by allowing you to adjust the gas port for your specific ammunition. The .750-inch gas journal diameter matches the adjustable block, giving you fine control over bolt carrier speed and recoil management. The 1:7 twist rate stabilizes heavier subsonic rounds while maintaining accuracy with standard velocity ammunition.

Suppressor-Ready Configuration

The 7-inch M-LOK handguard has a 1.77-inch internal diameter designed to accommodate suppressor cans without clearance issues. The Witt Machine The Dirty .30 suppressor threads directly to the 5/8x24 muzzle with 416 stainless steel construction and graphite black Cerakote finish. The handguard geometry keeps your support hand clear of the suppressor while maintaining a balanced shooting platform. This configuration eliminates the need for aftermarket suppressor mounts or workarounds.

Complete Lower System

The kit includes a complete mil-spec lower parts kit with fire control group, heavy-duty mil-spec carbine buffer tube, standard carbine buffer, and standard recoil spring. The SB Tactical SBA3 adjustable brace provides multiple length-of-pull positions for different shooting positions and body armor configurations. The mil-spec castle nut and receiver end plate secure the brace assembly. All lower components are ready for installation on a stripped lower receiver.

Follow safe handling and manufacturer instructions. Ensure compliance with all applicable federal, state, and local laws. Lower receiver not included. May Dropship from Davidson Defense. Verify suppressor compatibility before use. Ensure secure mounting before operation. Use only in accordance with applicable laws.