The L89 Series of M4's are built on SOLGW forged uppers and lowers, and utilize the L89 Drivelock Handguard. Built with an extended steel barrel nut, and their button rifled 4150CMV barrels, these M4's are built for demanding end users. These L89's also feature a A5 Length Buffer System, Liberty Charging Handle, Liberty Fighting Trigger, B5 P23 Grip, B5 Bravo Stocks, B5 Winter Trigger Guards, and an Ambi Selector. The 7-sided L89 handguard features integral steel QD cups on both sides. These include one (30) round magazine.
- B5 Grip, Stock and Winter Trigger Guard
- Liberty Charging Handle and Fighting Trigger
- 7-Sided L89 Handguard
Sons of Liberty Gun Works M4 L89, Semi-automatic, AR, 5.56NATO, 13.7" Pinned (16" OAL) Barrel, Mid-Length Gas System, Liberty Fighting Trigger, B5 Grip, NOX Flash Hider, Black, 30 Rounds, 1 Magazine M4-L89-13.7
Specifications
| Model | M4 89 |
| Caliber | 556NATO |
| Brand | Sons of Liberty Gun Works |
| Accessories | 1 Magazine |
| Color | Black |
| Manufacturer Part # | M4-L89-13.7 |
| Subcategory | Modern Sporting Rifles |
| Action | Semi-Automatic |
| Capacity | 30 Rounds |
| TYPE | AR |
| Barrel Length | 13.7" Pinned (16" OAL) |