Barra Airguns 400e Magazine - 100 Round

When a single magazine isn't enough, pick up affordable spares for your 400e air rifle. Each spare magazine is designed to hold 100 steel .177 cal (4.5mm) BBs—perfect for practicing magazine changes, speed drills, or extending your shooting sessions. This magazine is not compatible with other types of ammunition.

Built with a durable polymer housing and featuring a sleek, modern M4 magazine silhouette, it’s engineered to reliably feed thousands of rounds for hours of fun. The magazine is fed by an internal spring; use a BB speed loader to fill it. As the magazine fills, you’ll notice increased resistance—stop loading when this happens to prevent overfilling, which can cause jams or damage the spring.

For smooth operation, regular maintenance is recommended. If jams occur, place a single drop of silicone oil on the BB follower and let it stand overnight. This will keep the spring properly lubricated, ensuring optimal performance for years to come.

Please Read: For flawless performance with this 100 round magazine, we highly recommend using Barra Airguns Zinc Coated Steel BBs. These BBs are precision made to ensure smooth operation and prevent jamming. Using low quality or non-recommended BB, such as those commonly found at big box retailers or online marketplaces, can lead to feeding issues, jams, and potential damage. Even so called "high quality" BBs often have inconsistencies that cause problems over time. The 100 round magazine was engineered with precision ball bearings, and inconsistent BB sizes from other brands have led to users experiencing jamming issues.