BLS 0.25g BIO Blue Tracer BBs — 6mm Airsoft Tracer BBs (1kg / 4000rd)

Get dependable, visible tracer rounds without sacrificing accuracy — the BLS 0.25g BIO Blue Tracer BBs are a go-to for players and field ops who need bright, reliable trace performance in low-light play. These 6mm BBs are manufactured to a tight 5.95±0.01mm tolerance for consistent feeding and grouping, and their 0.25g weight gives a good balance of range and stability for AEGs and gas platforms that use standard 6mm ammo. Packed as a 1kg supply (≈4000 rounds), they’re perfect for skirmishes, night games, or loadouts where you want visual confirmation of every shot.

Formulated as a BIO tracer, these rounds are designed to use biodegradable polymer and a tracer compound so they achieve visible illumination when used with tracer units or tracer-capable systems. The bright blue tracer color makes follow-up shots and suppression patterns easy to read during scrimmages — great for instructors, team leaders, and hobbyists who want to add spectacle and function to night or low-light play.

Features

• Factory tracer formulation — engineered to illuminate when used with tracer lighting systems or tracer-capable gas/AEG setups.
• Precision tolerance: 5.95 ± 0.01 mm for consistent feeding and accuracy across magazines and hop-up chambers.
• 0.25 gram weight — balanced for controllable flight, solid range, and predictable hop-up response.
• Biodegradable (BIO) polymer construction — made to break down more readily than standard plastics when left in the environment.
• Large 1kg pack (approx. 4000 rounds) — economical for regular players, team practices, and field operators.
• Bright blue tracer color for high visibility in low light and night ops.

Specifications

Length / Diameter: 5.95 ± 0.01 mm (standard 6mm BB diameter)
Weight: 0.25 g per BB — Pack weight: 1,000 g (approx. 4000 rounds)
Material: Biodegradable polymer (BLS BIO tracer formulation)
Color: Blue (tracer compound)
Rounds per pack: 4000

Pro tip from the field: For best tracer performance, use these BBs with a dedicated tracer unit or tracer-capable magazine/system and chronograph your platform — 0.25g tracers respond reliably across a wide FPS range, but hop-up tuning will help you keep groups tight and the tracer visible downrange.