BLS PRECISION UH Airsoft Pellets 0.40g, 2500 BBs (Bag) - White

BLS PRECISION ULTIMATE HEAVY airsoft BBs

Do you want your replica to shoot accurately, far and to hit opponents efficiently? Are you looking for the world’s best-selling airsoft ammunition that is perfectly polished, clean and easy to track? Do you need BBs that perform just as well for CQB arenas as they do for long-range precision shots? Then these are the right BBs for you. BLS PRECISION ULTIMATE HEAVY BBs are a trusted brand in the 6 mm ammunition market. This Taiwan-based manufacturer produces high-quality and globally best-selling BBs for all types of airsoft guns, whether you use a pistol, rifle, SMG, LMG or a sniper rifle. BLS PRECISION ULTIMATE HEAVY BBs are hand-measured and inspected to meet very strict quality standards. Besides dimensional accuracy, the manufacturer places great emphasis on surface quality – every BB is carefully polished to ensure maximum range and consistent flight trajectory. BLS offers the best price-to-quality ratio on the market. The measured diameter is 5.95 mm (± 0.01 mm), making them perfectly safe for use even in tight-bore inner barrels such as 6.01 mm, as well as in high-RoF builds over 25 BBs/s.

Introduction to BLS and their production process

BLS BB variants

1. PRECISION & BIO
   The most common product line – classic plastic BBs or biodegradable BIO PLA variants. Diameter 5.95 mm (± 0.01 mm). Available in a resealable bag or a new portable bottle. Produced in weights from 0.20 to 0.32 g.
   
   
2. PRECISION ULTIMATE HEAVY & BIO ULTIMATE HEAVY
   Special heavy-weight BBs, available in classic or BIO PLA versions. Diameter 5.95 mm (± 0.01 mm). Available in resealable 1000-count bags or 1 kg packs. Offered in 0.36–0.48 g.
   
   
3. STAINLESS ULTIMATE HEAVY
   BBs with added metallic powder for increased weight and higher muzzle energy. Diameter 5.95 mm (± 0.01 mm). Comes in 1000-count bags in weights from 0.38 to 0.50 g. Not recommended for regular gameplay due to safety and increased hardness. They require frequent barrel cleaning and cause faster wear. Intended for competitive and target shooting.
   
   
4. TRACER & TRACER BIO
   Premium tracer BBs for night games and arena tournaments. Diameter 5.95 mm (± 0.01 mm). Available in resealable bags or transport bottles. Produced in weights from 0.12 to 0.32 g. BLS now offers not only green and red but also blue tracer BBs.

Production, polishing and quality control of BLS BBs

Recommendations & practical tips

• Keep your magazines clean
  When crawling or playing in dusty environments, use pouches with flaps. Sand in your magazine will be carried straight into the hop-up chamber and barrel, degrading accuracy and damaging the bucking and barrel.
  
  
• Don’t reuse BBs from the ground
  Even tiny dust particles act like sandpaper inside your hop-up and barrel.
  
  
• Regular inner barrel maintenance
  After each game, clean the inner barrel with a cleaning rod and a dry microfiber cloth. Avoid oils – the barrel must stay dry and degreased for the hop-up to work properly. You can use isopropyl alcohol for degreasing. Also see our guide How to properly clean an airsoft barrel.
  
  
• Watch your speedloaders
  Dirt often enters your replica through a dirty speedloader. Keep them clean just like your magazines.
  
  
• Material degradation
  BIO/PLA BBs absorb moisture. If you store them in a magazine or open packaging for weeks, they may swell or change surface properties, causing jams and serious replica damage. Dispose of deformed BBs immediately.
  
  
• Final tip
  Don’t hoard BBs for years. Buy fresh stock before events and use opened bags quickly. Store them in the original sealed packaging with a silica gel packet. A cheap dirty BB can easily damage a premium barrel. Professional snipers even degrease their BBs before every game. If unsure which BB type to choose, read our guide How to choose the right airsoft BBs.

Technical Specifications

• Product line: PRECISION ULTIMATE HEAVY
• Approx. BB count per pack: 2500 (1 kg)
• Weight per BB: 0.40 g
• Material: Standard plastic (non-biodegradable)
• Color: White
• Diameter: 5.95 mm ± 0.01 mm
• Packaging type: Resealable bag

Package Contents

• BLS PRECISION ULTIMATE HEAVY 0.40 g BBs