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PPS CNC Aluminum Shock Transfer System (STS) for M4 / M16 Series Airsoft AEG Rifles

ID: 49868 (HU-PPS-12035)
SHS / PPS859188498686PPS-1203549868
4.0 stars, based on 4 reviews
PPS CNC Aluminum Shock Transfer System (STS) for M4 / M16 Series Airsoft AEG Rifles
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The Shock Transfer System designed by PPS is intended to seat over the hopup of your gun to stabilize the gearbox and hopup to the receiver. This simple part allows the impact force of the piston to be transferred away from the gearbox and into the receiver to greatly improve the service life of your gearbox.


  • Precision CNC machined aluminum
  • Anodized finish
  • Helps distribute impact shock from the gearbox to greatly reduce wear
Compatibility: For Tokyo Marui, G&P, WE-Tech and other compatible M4 / M16 Series Airsoft AEG Rifles (Modification may be required)
Material: CNC Machined Aluminum

Manufacturer: PPS

4 Customer Reviews

(Write a review)

by WILLIAM B. on 06/09/2019
"HEADS UP!!! DOES NOT fit with a PROWIN style hopup unit.

Other than that, its beautiful
by Daniel H. on 09/26/2018
"Fits a normal hop up. The only problem I encountered were the screws. Instant lost due to vibration of the gun the caused it to unscrew in less than a day of playing, but luckily i did not lose the pins. I poked around the website for a replacement screw and the WE PDW Airsoft GBB Rifle Part #47 - Stock Retaining Screw is the perfect replacement!! locktite the screw and I was good to go.
by Michael R. on 12/17/2015
"Very solid and well built, but if you are running a dmr (like me :D) and have power and accuracy, you might need this, but small problem. I use a prowin hop up, it is too large to fit both the brace and the hop up, so as long as you have a standard hop up chamber. I plan to use this in a different gun instead. I imagine it would do its job just well.

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