Maintain reliable cycle timing and fine-tune your muzzle velocity with the LayLax Prometheus Non-Linear Spring MS80 for the Tokyo Marui Next Gen Recoil Shock (NGRS) Series. Specifically wound for Tokyo Marui's unique recoil gearbox dimensions, this high-grade Japanese steel mainspring features an irregular pitch that reduces initial motor load and smoothens the piston pickup cycle.
Delivering around 280–300 FPS (depending on barrel length and compression setup), the MS80 is the perfect drop-in rating for CQB site limits or refreshing a tired stock spring without stressing internal gears.
Pushing your Tokyo Marui Recoil Shock replica beyond strict CQB velocity caps or running an over-stressed gearbox can quickly lead to site chronometer headaches and premature component wear. The LayLax Prometheus Non-Linear Spring MS80 is engineered specifically for the shortened spring guide and piston stroke geometry found inside Tokyo Marui Next Generation Recoil Shock (NGRS) AEGs, offering predictable energy output paired with ultra-smooth mechanical compression.
Irregular Pitch Non-Linear Coiling Standard linear springs compress uniformly from the first millimetre of stroke, putting peak rotational resistance on the motor and bevel gear right at the moment of initial sector gear engagement. Prometheus solves this with an irregular non-linear pitch design. The loosely spaced coils compress easily at the start of the piston cycle, reducing mechanical shock on gear teeth and cutting battery amp draw. As the piston nears full retraction, the tightly wound coils compress to generate clean, consistent forward thrust without piston bounce.
Premium Japanese Spring Steel Wound in Japan from high-tensile, heat-treated piano-wire grade steel, the MS80 resists long-term coil set and fatigue. Traditional aftermarket springs often lose 10–15 FPS after a few heavy game days as the steel relaxes; Prometheus springs retain their initial factory tension through thousands of semi and full-auto cycles, ensuring your chronometer readings remain steady throughout the year.
Practical Applications & Real-World Use Cases
-
Strict CQB Site Compliance: Many indoor arenas in the UK enforce hard 300 or 328 FPS limits. The MS80 sits right in the sweet spot (~280–300 FPS on 0.20g BBs with stock compression), guaranteeing you never fail morning registration chronos.
-
Preserving Stock Internals & Battery Life: Lower spring tension reduces stress on factory TM zinc-alloy gears, the piston rack, and the recoil weight linkages. It also allows smaller 7.4V LiPo batteries to run cooler and last longer through cold-weather game days.
-
Short-Barrel CQB Builds: Excellent for platforms like the TM HK416C or M4 CQB-R where a smooth, rapid cycle rate is preferred over raw woodland range.
Compatibility Engineered exclusively for Tokyo Marui Next Generation Recoil Shock (NGRS) gearboxes, including the M4, HK416, HK417, SCAR-L/H, and AK NGRS platforms. (Not compatible with standard standard Ver.2 / Ver.3 AEGs.)
| SKU | 616547 |
|---|---|
| Brand | Laylax |
| Weapon Category | Parts |
| FPS | 201 - 300 |
| Spring Type | AEG |
Our courier partners deliver from Monday to Friday, excluding Bank Holidays. We will attempt to dispatch all packages within 24 hours, although at peak times this may take slightly longer. Orders with products with two-tone service or Defence Check may take longer to dispatch.
Once the order is dispatched you will get an email with the tracking number and which courier partner it’s going to be delivered via. Any missing/incorrect items need to be reported with 48hrs of signed delivery.
Click Here to Download the Returns Form (PDF Format)
Faulty Product?! Unfortunately that is part of life but be rest assured we are here to help! Contact one of our friendly staff via phone or email. Stating what the problem is, if we can resolve the problem via phone or email great if not then they will advise how to send it back and what details we require.
The gun will be sprayed 51% in a bright/primary color (we do only blue, green and red currently). The process of two toning currently runs at 2 working days depending on Drying Time, which is effected by Ambient Temperature and Weather. and currently no express delivery is available for this even if you select it at checkout.