NUPROL RZR 0.25g Precision Green Tracer BIO BB


Buy more and Save on NUPROL RZR!

Buy 3+ save £0.50
Buy 5+ save £0.75
Buy 10+ save £1.00
  • Tolerance: 5.95mm +/- 0.01mm
  • Green Tracer Bio BBs
  • 0.25g Weight - 2200rnd bottle or 6000rnd bag

If you are looking for tracer BBs in the go-to skirmishing weight, 0.25g, NUPROL have what you need! The RZR 0.25g Green Tracer BIO BB has the same ultra-tight +/- 0.01mm tolerances as NUPROL's standard BBs but are green tracer BBs which will glow when fired through an Airsoft tracer unit, helping you instinct aim in close quarters and guide your BBs onto target in low light settings. 

Full description

These might come in handy...


These 0.25g Green Tracer Bio BBs are constructed from polymer and measure 5.95mm in diameter with a tolerance of +/- 0.01mm, making them a great choice for improved accuracy and smooth, consistent feeding compared to cheaper alternatives. You are what you eat, and the same is true for your Airsoft gun. To get the most out of features such as adjustable HOP-up units and tightbore inner barrels, high quality ammo is an absolute must!

These BBs are approximately 0.25g in weight, making them great for almost any Airsoft gun and both indoors and outdoor skirmishing environments. When fired through an Airsoft tracer unit, these BBs will glow bright green and illuminate the trajectory of the BB allowing you to steer your rounds onto target easily and can be very useful for snipers operating in low light. 

Being 5.95mm +/- 0.01mm makes them great for tightbore barrel setups, guaranteeing smooth feeding with every shot. 0.25g is the go-to weight for most Airsoft skirmishers and has the benefit of being the perfect balance of projectile speed and long range stability.


  • Part of NUPROL's RZR BB Range
  • Green Tracer Bio BBs - Illuminate them with a Tracer unit
  • Tight tolerances - Perfect for tightbore inner barrels 
  • Biodegradable polymer construction - No need to worry about clean-up!
  • 0.25g BBs - Great for indoor and outdoor skirmishes
  • 2200rnd Bottle or 6000rnd bulk bag available
  • 5.95mm +/- 0.01mm tolerance

Package Includes

  • NUPROL RZR 0.25g Precision Green Tracer BIO BBs



Name Variant
x2200, x6000,
Colour Wheel Greyscale
Item Colour

BB Specific

Approx. 2200, Approx. 6000,
BB Type
Tracer , Bio ,
BB Weight (g)
BB Size (mm)
Approx. 5.95mm
BB Tolerance (mm)
+/- 0.01mm
Bottle, Bag,