Sons of Liberty Gun Works M4 AR-15 Pistol, 5.56 NATO, Daniel Defense MK18 10.3 in Upper, RIS II FDE, EOTech XPS2-0, SB Tactical PDW Brace
This custom-configured AR-15 pistol pairs a Sons of Liberty Gun Works M4 lower with a Daniel Defense DDMK18 10.3 in upper and a premium parts selection throughout. Notable upgrades include a Wilson Combat TTU trigger, BCM bolt carrier and ambidextrous charging handle, a Radian extended bolt catch, and a SilencerCo ASR-mount muzzle brake. The setup is rounded out with an SB Tactical SBPDW brace and an installed EOTech XPS2-0 holographic sight, all in excellent overall condition.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: This firearm is in great shape. There are minor scratches and blemishes present. The bore is clean and shiny.
What’s Included
- EOTech XPS2-0 holographic sight (installed)
- One 30-round Magpul PMAG Gen M3 polymer magazine
Built on a SOLGW Model M4 lower with a 1776 motif, this pistol uses the Daniel Defense DDMK18 10.3 in upper for proven reliability in a compact format. The CMV steel barrel is cold hammer forged with a government profile and a 1:7 twist, and it runs a carbine-length gas system for the 10.3 in configuration. The barrel is threaded and fitted with a SilencerCo ASR-mount muzzle brake.
The handguard is the Daniel Defense MK18 RIS II in FDE, constructed from 6061-T6 aluminum. It measures 9.55 in in rail length and carries the military NSN 1005-01-548-1385 marking, reflecting the correct MK18-spec pattern.
Controls and internals feature high-quality components: a BCM bolt carrier, BCM ambidextrous charging handle, Wilson Combat TTU trigger, and a Radian extended bolt catch. Ergonomics are enhanced with a Magpul MOE-K2+ pistol grip.
The rear uses the SB Tactical SBPDW adjustable PDW-style brace for a compact, balanced setup. An EOTech XPS2-0 holographic sight comes installed, complementing the direct-impingement 5.56 NATO platform and its 30+1 capacity. The receivers are aluminum, and the build is made in the USA.