The Dagger L was an improved version of the GAT-01A1 Dagger (commonly known as the "105 Dagger"), and its basic structure followed that of its base unit. Its design was also partially simplified like the GAT-01 Strike Dagger's, enabling the mobile suit to be mass produced with greater ease. The Dagger L lacked the 105 Dagger's laminated armor to reduce development costs, but it retained its predecessor's ability to utilize the "Striker Pack System", giving it a high level of versatility. It is often equipped with the Jet Striker for aerial combat or the Doppelhorn Striker for anti-ship bombardment, but can also use other Striker Packs such as the Sword Striker for close combat and the Launcher Striker for long-range bombardment. The Dagger L is designed to overwhelm its opponents through group combat, and reflecting this concept, its armament focuses on ease of use and operability. Its standard armament consisted of four CIWS, two rocket-propelled anti-armor penetrators, two beam sabers, a beam carbine and a shield, allowing it to fight at both close and ranged combat.