BLS STAINLESS ULTIMATE HEAVY Airsoft BBs

Do you want to shoot accurately, at long range and reliably hit targets? Are you looking for heavy ammunition for high-performance airsoft guns? Do you want BBs that are designed for precision shooting at long distances? Then these are the right BBs for you. BLS STAINLESS ULTIMATE HEAVY BBs are a proven brand on the market of high-quality 6 mm ammunition. This Taiwanese manufacturer provides top-tier, globally best-selling BBs for all types of airsoft guns, whether you use pistols, rifles, SMG, LMG or sniper rifles. BLS STAINLESS ULTIMATE HEAVY BBs undergo strict manual diameter control. Besides dimensional consistency, the manufacturer also focuses on surface quality, ensuring the BBs are perfectly polished for maximum range and consistent flight trajectory. BLS offers the best price-to-performance ratio. The measured diameter is 5.95 mm (± 0.01 mm), meaning you can safely use them even in tight-bore barrels with an inner diameter of 6.01 mm. Keep in mind that STAINLESS ULTIMATE HEAVY BBs contain metal powder to achieve higher weight and increased muzzle energy. These BBs are not recommended for gameplay due to their hardness and safety risks. After shooting, always clean your inner barrel and expect faster wear. These BBs are intended exclusively for target shooting and competitions.

Presentation of BLS and their products

BLS BB Variants

1. PRECISION & BIO
   The most common product line: standard plastic BBs or biodegradable BIO PLA BBs. Diameter 5.95 mm (± 0.01 mm). Available in resealable bags or newly in transport bottles. Offered in weights 0.20–0.32 g.
   
   
2. PRECISION ULTIMATE HEAVY & BIO ULTIMATE HEAVY
   Special heavy BBs in both standard and BIO PLA versions. Diameter 5.95 mm (± 0.01 mm). Available in 1000-BB bags or 1 kg packaging. Offered in 0.36–0.48 g.
   
   
3. STAINLESS ULTIMATE HEAVY
   Metal-powder BBs for higher weight and higher muzzle energy. Diameter 5.95 mm (± 0.01 mm). Offered in 1000-BB bags, weights 0.38–0.50 g. Not recommended for gameplay; increases barrel wear. Intended for competition and target shooting.
   
   
4. TRACER & TRACER BIO
   Premium tracer BBs designed for night games and arena matches. Diameter 5.95 mm (± 0.01 mm). Packaged in resealable bags or bottles. Available in 0.12–0.32 g, now also in blue tracer variants.

BLS manufacturing process, polishing and quality control

Recommendations & Practical Tips

• Magazines as dust vaults
  When crawling or playing in dusty environments, use pouches with flaps. If sand enters the magazine, BBs will carry it into the hop-up and barrel, immediately ruining accuracy and damaging the bucking and barrel.
  
  
• Don’t eat from the ground
  BBs dropped on the ground or exposed to dust must not be reused. Even micro-dust acts like sandpaper on your hop-up bucking and barrel.
  
  
• Regular barrel cleaning
  Clean the inner barrel after every game with a dry microfiber patch. Avoid oils; the barrel must be dry for hop-up to work correctly. You may use isopropyl alcohol for degreasing. Check our guide How to properly clean an airsoft barrel.
  
  
• Beware of speedloaders
  Dirt often enters the gun through a dirty speedloader. Keep it as clean as your magazines.
  
  
• Material degradation
  BBs (especially BIO PLA) react to humidity. Leaving BBs in magazines for weeks may cause swelling or surface changes, leading to jams and possible damage. Discard deformed BBs immediately.
  
  
• Final advice
  Do not store BBs for years. Use them quickly and keep them in original packaging with silica gel. Even the best barrel can be damaged by poor-quality BBs. Professional snipers even degrease BBs before games. For help choosing BBs, see How to choose the right airsoft BBs.

Technical Specifications

• Product line: STAINLESS ULTIMATE HEAVY
• Approx. BB count: 1000
• Weight per BB: 0.50 g
• Material: Plastic with metal powder additive
• Color: Grey
• Diameter: 5.95 mm ± 0.01 mm
• Packaging: Resealable bag

Package Contents

• BLS STAINLESS ULTIMATE HEAVY 0.50 g airsoft BBs