Bolt Carrier Features
- S45C CNC manganese phosphate coating resulted in a realistic look
- Lighter than Marui's original bolt carrier by 11.5g which helps with a faster operation
- A "Zero-resistance cube" is added to smoothen the operation. When a bolt is moving horizontally, this little cube stays inward hence no resistant objects in its way, and then it pops out when a bolt returns to its normal position
- Zero-resistance cube is made of steel that prevents severe dents caused by the default upper hammer. After a long time of use, if it wears out, you can simply change the cube instead of a bolt frame
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Nozzle Features
- Made of mixed nylon fibre to enhance and prolong the life of parts
- Core-spun design over the top can firmly push BBs, enhancing its strength itself
- Fine-tuning the settings of the original bolt head, optimising the air intake port, speeding up the reloading time, and reducing the risk of jamming
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Nozzle Reset Features
- Made of mixed nylon fibre to enhance and prolong the life of parts
- Decreases the operating tolerance of a nozzle
- Reduces interference with trajectory when the bolt carrier is operating
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Gas Core Inner Parts Features
- Made of mixed nylon fibre, stainless steel and steel to enhance and prolong the life of parts
Nozzle Spring Features
- Made of spring wire JIS G3522 (grade SWP-A)
- Increases the radius of the spring to strengthen the nozzle to break away from the hop-up force
- Effectively solves a breaking problem of the default nozzle spring
- Effectively smoothens a nozzle returning operation
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Piston Head Features
- The adjusted product size results in better airtight that reduces air blow-out
- Made of NBR rubber (with carbon black) is excellent antistatic, enhances and prolongs the life of parts
- Wide hot-and-cold temperature range
- Extremely high and stable friction
- High wear resistance (even at elevated temperatures)
- Oil and acid resistance
- Excellent dynamic characteristics
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Roller Bolt End Features
- Made of CNC 7075 aluminium to enhance and prolong the life of parts
- Stables the bolt carrier in the central position inside a buffer tube
- Weight of 27g

Steel Bolt Roller Features
- Made of CNC steel to enhance and prolong the life of parts
- Corresponding to MGG2-128
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★The test performance is excellent when installed on a MARUI MWS airsoft gun★

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