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RA-Tech Complete NPAS Bolt Assembly for KWA / KSC M4 Airsoft GBB Rifles

ID: 45010 (RA-KSC-034)
RA-Tech/Maple Leaf (AST)45010
5.0 stars, based on 2 reviews
RA-Tech Complete NPAS Bolt Assembly for KWA / KSC M4 Airsoft GBB Rifles
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  • Direct Drop-In Replacement Part
  • Easily Adjust the FPS of Your Rifle
  • Complete Bolt Assembly with NPAS Valve
  • Made from Stainless Steel
  • Blowback Unit made from High Strength Polymer
  • Adjustment Tool included
  • USA Version
Compatibility: For KWA / KSC M4 Airsoft GBB Rifles
  • Length:
  • 16.5cm / 6.5"
    Material: Stainless Steel

    Manufacturer: RA-Tech

    California residents click here for Proposition 65 warning

    2 Customer Reviews

    (Write a review)

    by Matthew W. on 09/14/2017
    "This bolt was well worth the money. I resented buying it because of the price but the simplicity allows me to quickly adjust fps day by day according to temps. It's like owning two guns. Awesome
    by ermelo p. on 07/04/2017
    "I've had the NPAS bolt system for about almost a year now. I bought it for my KWA LM4. This bolt allows FPS adjustment on a GBBR. ( Helpful in hot region where GBBR shoots high fps due to expanded gas.)
    Drop in installation
    Easy maintenance
    Allows adjustments to fps restrictions

    Bolt requires a special tool to adjust the fps (do not lose it)
    There were no instructions that came with the product (had to do research)
    *I've learned that CCW will decrease FPS and CW will increase

    Overall: I am very satisfied with this product. Well wort the money. Never had problems with it. It does its job.

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