The L89 Series of M4’s represents our uncompromising commitment to the professional end user. Built on our precision-forged upper and lower receivers, these rifles feature our purpose-built L89 Drivelock Handguard system with 7-sided profile and integral steel QD cups on both sides. We’ve equipped them with extended steel barrel nuts and P3 Rifled 4150CMV barrels that deliver when it matters most. The enhanced A5 Length Buffer System provides superior recoil management, while premium components including our Liberty Charging Handle, Liberty Combat Trigger, ambidextrous selector, SBA3 stock, and B5 grip.