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£14.99
  • White BIO BBs
  • 0.28g in Weight
  • Approx 3300 BBs

NUPROL's latest environmentally friendly offering into the Airsoft Market with newly designed heavy-weight BBs made to offer excellently consistent performance at long-range and greater accuracy, which after use Degrade and Breakdown over time. 

£9.99
  • White BIO BBs
  • 0.20g in Weight
  • Approx 3300 BBs

NUPROL's latest environmentally friendly offering into the Airsoft Market with newly designed 0.20g BBs made to be offer consistent performance and great accuracy, which Degrade and Breakdown over time after use. 

£9.99
  • Approx. 3500 BBs
  • ±0.005mm Tolerance
  • Biodegradable 0.20g BB

If extreme precision is what you're after when building your Airsoft gun then why not get a BB which matches the quality of your rifle? The Xtreme Precision® BIO range of BBs have been developed by Evolution Airsoft in Italy to conform to some of the highest tolerances on the market, leading to an extremely stable, precision BB. Heavily tested during production these BBs have passed multiple certifications and tests to ensure you're getting your hand on the highest quality product you can get, with no room for error. 

These BBs are designed to be biodegradable, meaning that they will deteriorate over time when exposed to the natural environment and anywhere where microorganisms exist. These BBs are highly stable, and when stored are not affected by Humidity like other brands of Bio BBs.

These BBs are perfect for any Airsoft Skirmisher who is looking to get the absolute peak of performance out of their replica, whether it be an Electric AEG, HPA or a Gas Gun, even if the site only allows Bio BBs.

£10.99
  • Approx. 2800 BBs
  • ±0.005mm Tolerance
  • Biodegradable 0.25g BB

If extreme precision is what you're after when building your Airsoft gun then why not get a BB which matches the quality of your rifle? The Xtreme Precision® BIO range of BBs have been developed by Evolution Airsoft in Italy to conform to some of the highest tolerances on the market, leading to an extremely stable, precision BB. Heavily tested during production these BBs have passed multiple certifications and tests to ensure you're getting your hand on the highest quality product you can get, with no room for error. 

These BBs are designed to be biodegradable, meaning that they will deteriorate over time when exposed to the natural environment and anywhere where microorganisms exist. These BBs are highly stable, and when stored are not affected by Humidity like other brands of Bio BBs.

These BBs are perfect for any Airsoft Skirmisher who is looking to get the absolute peak of performance out of their replica, whether it be an Electric AEG, HPA or a Gas Gun, even if the site only allows Bio BBs.

£11.99
  • White BIO BBs
  • 0.25g in Weight
  • Approx 3300 BBs

NUPROL's latest environmentally friendly offering into the Airsoft Market with newly designed 0.25g BBs made to offer consistent performance and great accuracy, which Degrade and Breakdown over time. This 0.25g weight of BBs are less effected by the wind than the traditional 0.20g BBs and are great for both CQB and Indoor Environments and essential for sites which only allow Bio-BBs which degrade. 

These BBs are perfect for any Airsoft Skirmisher looking for their next go-to brand of BB, and for those looking for a more reliable and consistent BB. 

£13.99
  • 100% Biodegradable
  • 1kg Resealable Bag
  • Camouflaged


The age old problem, we want to do everything we can to save the environment, but we also want to fling plastic at each other. If you want to do you bit for the planet then why not consider switching to Bio BB designed to be biodegradable? MIMETIX BB are 100% bio degradable BB designed to degrade in soil, and are camouflaged so they blend into the environment as well.

£13.99
  • 100% Biodegradable
  • 1kg Resealable Bag
  • Camouflaged

The age old problem, we want to do everything we can to save the environment, but we also want to fling plastic at each other. If you want to do you bit for the planet then why not consider switching to Bio BB designed to be biodegradable? MIMETIX BB are 100% bio degradable BB designed to degrade in soil, and are camouflaged so they blend into the environment as well.

£14.99
  • Biodegradable
  • 1kg Resealable Bag
  • 5.95mm +/- 0.01mm

A 1KG bag containing approximately 4000 high quality biodegradable competition grade Airsoft BBs, constructed from Polylactide (PLA) which degrades in around 60 days, and are polished to provide a smoother aerodynamically enhanced external surface. 

£15.99
  • Biodegradable
  • Multi-Polish Process
  • 1KG Bag of 0.25g BB

Match Grade, biodegradable BBs created for Airsoft Guns and Weapons, created with a Multi-Polish Process to give an excellent finish.

£16.99
  • White BIO BBs
  • 0.30g in Weight
  • Approx 3300 BBs

NUPROL's latest offering into the Airsoft Market with newly designed BBs made to be more accurate and consistent than ever before.

£16.99
  • Pot of 1000
  • Biodegradable
  • Heavweight BBs

A pot of 1000 x 0.4g rounds of a white colour, which are much heavier than standard rounds meaning you can apply more HOP to really reach out and touch your target - finally available in biodegradable form to keep Mother Earth happy.

£18.99
  • White BIO BBs
  • 0.32g in Weight
  • Approx 3300 BBs

NUPROL's eco-friendly ammunition offering for Snipers, heavy-weight 0.32g BBs made to offer excellently consistent performance at long-range and greater accuracy, which biodegrade after use. 

£9.99
  • 1kg Bag of BBs
  • Biodegradable BBs
  • Standard White 0.28g

Developed by Evolution Airsoft these are great BIO BBs for regular Skirmishers and Airsoft players who play at sites which specifically require Biodegradable BBs to be used during gameplay. 0.28g BB are commonly used as a Regular to Advanced Player weight of BB, and are great for outdoor gameplay, allowing them to punch through bushes, grass, and more stable in wind. These BBs are perfect for use in Airsoft guns operating over 320fps, or for upgraded guns with an effective hop-up unit.

Biodegradable BBs are specifically designed to deteriorate over time when exposed to natural conditions. Some Airsoft sites are listed properties, or have special requirements that events used must not damage the natural environment, which is why Bio BBs were invented.

The BBs come in a 1kg Bag, with the bag containing approx. 3550 BBs, and is resealable to ensure that your BBs stay as fresh as possible, and prevents them from spilling once the bag has been opened.

£10.99
  • 0.20g BBs
  • 5,100rnds
  • Biodegradable

A large bottle that contains 5,100rnds of biodegradable 6mm Airsoft ammunition, from Lancer Tactical.

£12.69
  • Biodegradable
  • Multi-Polish Process
  • 1KG Bag of 0.28g BB [approx 3570]

Match Grade, biodegradable BBs created for Airsoft Guns and Weapons, created with a Multi-Polish Process to give an excellent finish.

£12.99
  • Biodegradable
  • Seamless Ammo
  • Competition Grade

A large bottle that contains 5,100rnds of 0.25g biodegradable 6mm Airsoft BB ammunition, from Lancer Tactical.

£13.99
  • Biodegradable
  • 1kg Resealable Bag
  • 5.95mm +/- 0.01mm

High quality competition grade 0.20g 5.95mm Airsoft ammunition, that's environmentally friendly, completely biodegrading in around 50 days. 

£13.99
  • Biodegradable
  • <5% Air Bubbles
  • 0.01mm Tolerance

A bottle of 3,300rnds of biodegradable Airsoft ammunition which has an individual weight of 0.30g, making them ideal for highly upgraded AEGs as well as Bolt Action Sniper Rifles and DMRs. If you play somewhere that demands the use of biodegradable BBs, and you don't want to compromise on quality, these are for you.

£15.99
  • Biodegradable
  • Multi-Polish Process
  • 1KG Bag of 0.30g BB

Match Grade, biodegradable BBs created for Airsoft Guns and Weapons, created with a Multi-Polish Process to give an excellent finish.

Whether your skirmish site only allows bio BBs or if you’re just looking to make an eco-friendly switch, we have a great range of suitable options for you. Plus, plenty of our bio BBs are available as a bulk purchase, so you can buy more and save. 

At Patrol Base you’ll only find the highest quality bio BB manufacturers including Ares, G&G and more. We know everyone's needs are different too, which is why we offer a variety of BB weights and amounts, with up to 5,200 bio BB bottles and bags available. 

Shop online and enjoy next day delivery options or visit us at our Huddersfield location where you can take a look at our in-store biodegradable BB collection.