EPeS APS / L96 Sniper Upgrade Cylinder Set

EPeS Sniper Air System Upgrade Set for Well L96 and Maruzen APS-2

Looking for a way to get the maximum accuracy, range, and shot silence out of your bolt-action sniper? Want to buy a ready-to-use, hand-tuned set built specifically for your rifle? Need an easy upgrade that only requires a drop-in cylinder replacement? The EPeS Sniper Air System Upgrade Set provides a complete assembly of carefully designed and pre-installed parts that significantly boost performance. This includes a tight stainless cylinder with sealed head and Sorbopad, CNC spring guide with bearing and POM sleeve, a high-power M150 spring, and a CNC Variable Mass Piston (VMP) with both stainless and dural weights. With the ability to quickly fine-tune piston weight, you can achieve quiet shots, higher energy, and stable groupings with heavier BBs (Joule creep effect). The spring guide with bearing and anti-vibration sleeve reduces noise and vibration, while the Sorbopad protects internal parts and extends lifespan. Each set is individually tested at EPeS for sealing, smoothness, and noise, so you receive a ready-to-use cylinder unit. Note: adjusting piston weights is not plug-and-play – proper knowledge of bolt-action mechanics is required.

Recommended Piston Weight Tuning Process

1. Choose your target BB weight (e.g., 0.43 g, 0.49 g).
2. Test weight combinations from lightest to heaviest and note total piston mass.
3. Fire 3–5 shots per setup, record average Joules, and monitor noise.
4. Select the setup with the most consistent Joules and acceptable noise.
5. Verify performance in the field with hop-up adjusted.

Key Features

• Complete CNC set:
  Stainless cylinder, CNC spring guide with bearing, VMP piston, CNC cylinder head with Sorbopad, guide components.
  
  
• M150 spring:
  Optimized stiffness for higher power and consistency.
  
  
• Variable Mass Piston (VMP):
  Stainless + dural weights for fine-tuning power and sound.
  
  
• Spring guide with bearing and POM sleeve:
  Reduces vibration and noise.
  
  
• Sorbopad on cylinder head:
  Cushions piston impact, lowers noise, extends part life.
  
  
• Tested by EPeS:
  Leak check, fit, sound, and performance testing before shipping.

Technical Specifications & Compatibility

• Compatibility: Well L96 (MB-01, MB-08), Maruzen APS-2
• Cylinder: CNC stainless steel
• Piston: CNC VMP with stainless inserts + dural weights (blue finish)
• Spring guide: CNC with bearing and POM sleeve
• Spring: M150 (AirsoftPro or equivalent)
• Recommended BB weight: 0.43–0.48 g (depending on piston load)
• Performance (max loaded piston in EPeS Custom Sniper): 3.5 J with 0.48 g

Package Includes

• CNC stainless cylinder
• CNC cylinder head with Sorbopad
• CNC VMP piston
• 4× stainless piston weights (pre-installed)
• 4× dural piston weights (blue finish)
• CNC spring guide with bearing and POM sleeve
• M150 spring
• Assembly parts and basic installation guide

Warning

• This set requires advanced technical knowledge and disassembly skills.
• Performance depends heavily on setup (barrel, hop-up, sealing, alignment).
• For quietest performance, use a quality suppressor and fine-fit piston rings.
• Improper installation may damage rifle and parts; professional installation recommended.
• All sets are hand-tested at EPeS before shipping.
• Tested with: CNC AirsoftPro gen.3 hop-up chamber, SHS 70° hop rubber, Lambda 6.05×500 mm inner barrel, AirsoftPro trigger unit.