Auxiliary magazine for the 400e that keeps practice flowing without frequent reloads. Holds 100 steel .177 cal (4.5mm) BBs — ideal for speed drills, transition practice, and longer sessions.

Low-profile M4 silhouette helps with quick swaps and comfortable handling during training. Refill using a BB speed loader and stop when you feel increased resistance to avoid over-compression of the spring.

Occasional maintenance keeps feed consistent; a single drop of silicone oil on the follower can clear persistent jams.

Main features:

• M4-style profile for intuitive grip and rapid magazine changes
• Polymer housing that resists impact and repeated use
• Spring-driven follower for steady BB delivery
• Speed-loader compatible for fast top-ups between drills
• Easy field maintenance — apply silicone oil to the follower if jams occur

Specifications:

• Brands: Barra Aiguns
• Capacity: 100 steel .177 cal (4.5mm) BBs
• Compatibility: Barra Airguns 400E Gen 2 Full Auto BB Rifle
• Material: Polymer body with metal spring follower
• Feed system: Internal spring — tension increases as the magazine fills
• Loading note: Use a BB speed loader and stop loading when resistance increases to prevent jams
• Maintenance: One drop of silicone oil on the follower and allow to sit overnight for persistent jams