Sons of Liberty Gun Works M4-89 11.5 in 5.56 NATO AR-15 Pistol, M89 M-LOK Handguard, SB Tactical Brace, Ambi Charging Handle, Threaded Barrel
This SOLGW M4-89 AR-15 pattern pistol pairs an 11.5-inch 5.56 NATO barrel with the SOLGW M89 Drive-Lock free-float handguard for a rigid, feature-rich setup. It includes a full-length 1913 top rail with engraved T-marks, multiple M-LOK slots, and a rear cross-bolt lockup. The pistol is built on matte black anodized receivers with a flat-top upper, forward assist, and dust cover, and it is fitted with a SOLGW ambidextrous charging handle, an adjustable SB Tactical brace with strap, and a B5 Systems pistol grip. Condition is excellent.
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.
Rifling: Excellent - Sharp lands and grooves.
Specific Condition Notes: Light handling marks are present on close inspection. The bore presents a bright, clean appearance. See photos for details.
What’s Included
- 1x 30-round Magpul PMAG, windowed polymer
- SOLGW M-LOK QD sling socket (installed on handguard)
The 11.5-inch barrel is threaded and capped with an A2-pattern birdcage flash hider, offering a proven muzzle device on a compact 5.56 NATO platform. The direct impingement system keeps the configuration true to AR-15 standards while maintaining a handy overall length.
The SOLGW M89 Drive-Lock handguard is a highlight, providing a full-length 1913 Picatinny top rail with engraved T-marks, extensive M-LOK mounting surfaces, and a rear cross-bolt lockup designed for a secure, rigid interface. A SOLGW M-LOK QD sling socket is already installed for quick sling attachment.
Controls and furniture are set up for practical use: a SOLGW ambidextrous charging handle, an adjustable SB Tactical brace with strap, and a B5 Systems pistol grip. The flat-top upper includes a forward assist and ejection-port dust cover, and the receivers wear a matte black anodized finish.
The lower is marked MODEL: M4 and CAL: MULTI, with a stated capacity of 30+1. This AR-15 pattern pistol is made in the USA and ships with a windowed Magpul PMAG to get you started.