SA FLEX™ 0.28g BIO Airsoft Pellets, 3570 BBs (Bag) – White

Specna Arms FLEX™ BIO airsoft BBs

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The FLEX™ BIO series consists of biodegradable BBs produced by Specna Arms with the aim of delivering reliable, high-performance ammunition while maintaining a reasonable price, so you do not have to limit how much you shoot. The ammunition undergoes thorough quality control to ensure that every BB delivers the best possible performance on its way to the target. FLEX™ BIO BBs are ideal for machine guns, SMGs, assault rifles and accurate DMRs. Thanks to their precise 5.95 ± 0.01 mm dimensions, they provide stable contact with the hop-up bucking, whether used with R-HOP and FLAT hop systems or conventional buckings with a smaller contact patch. The BIO PLA material also makes the ammunition biodegradable, making it suitable for outdoor fields and arenas where BIO BBs are required.

Key features of FLEX™ BIO BBs

Price / quality

Quality BBs at a reasonable price for players who are not afraid to keep the trigger busy.

Great precision

Diameter of 5.95 mm (+/- 0.01 mm) for standard and precision inner barrels of 6.03 mm and larger.

Food for machine guns

The FLEX™ series is ideal food for hungry machine guns and assault rifles when you do not want to worry about the price of BBs and simply want to enjoy the game.

Versatile use

Suitable for AEG, HPA, GBB, CO2 and sniper rifles with very tight inner barrels.

BIO PLA version

Biodegradable BIO PLA ammunition suitable for outdoor fields and events where BIO BBs are required.

Specna Arms FLEX™ BIO BBs

Quality eco-friendly ammunition with a controlled diameter of 5.95 mm (+/- 0.01 mm), providing great precision while maintaining an affordable price.

Specna Arms BB product lines

• EDGE ULTRA™: The highest-grade series for maximum precision and performance. Outstanding range and grouping thanks to dimensions of 5.95 mm (+/- 0.001 mm) and weight consistency (+/- 0.01 g) between individual BBs.
• EDGE™: Excellent quality suitable even for extra-tight inner barrels. Outstanding precision thanks to dimensions of 5.95 mm (+/- 0.005 mm) and weight consistency (+/- 0.01 g).
• CORE™: An affordable option with good parameters for regular gameplay. Precise dimensions of 5.95 mm (+/- 0.005 mm) and weight consistency (+/- 0.01 g).
• FLEX™: Ideal for all types of airsoft guns. They may have a wider tolerance of 5.95 mm (+/- 0.01 mm), but offer a lower price than the ultra-precise EDGE ULTRA™ BBs.

Technical specifications

• Series: FLEX™ BIO
• Weight: 0.28 g
• Quantity: 3570 BBs (1 kg)
• Diameter: 5.95 mm ± 0.01 mm
• Material: BIO PLA (biodegradable plastic)
• Colour: White
• Packaging: Resealable bag

Package contents

• Specna Arms FLEX™ BIO BBs 0.28 g (3570 BBs)

Frequently asked questions from our store

Are Specna Arms FLEX™ BBs suitable for a 6.03 mm precision inner barrel?

Yes. FLEX™ BBs have a specified diameter of 5.95 ± 0.01 mm, making them suitable for common precision inner barrels with a diameter of 6.03 mm and larger. However, if you are building a highly accurate DMR or sniper rifle and want minimal dimensional variation in your ammunition, we recommend choosing the higher-grade EDGE™ or EDGE ULTRA™ series.

What is the difference between Specna Arms FLEX™, CORE™, EDGE™ and EDGE ULTRA™?

The main differences are manufacturing tolerances and price. FLEX™ represents affordable ammunition for regular gameplay and high consumption. CORE™ offers tighter manufacturing tolerances, EDGE™ is aimed at more demanding builds, while EDGE ULTRA™ is the most precise series for players who want to get the maximum performance from their gun. FLEX™ therefore makes very good sense for a standard assault AEG, while we would choose one of the higher-grade series for a finely tuned DMR.

How should airsoft BBs be stored?

Keep BBs clean, dry and in a sealed container, ideally in their original resealable bag. Do not carry them loose in pockets or dirty containers. Dust, sand and other debris can enter the magazine, hop-up chamber and inner barrel together with the BBs, potentially causing feeding problems, barrel fouling and reduced accuracy.