ID: 45010 (RA-KSC-034)
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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
For KWA / KSC M4 Airsoft GBB RiflesLength:
16.5cm / 6.5"Material:
(Write a review)
"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
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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