Product Description
T238 | Reinforced AEG Piston w/ 13.5 Steel Rack (Basic / EXP / PRO Edition)
The T238 Reinforced AEG Piston is a glass fiber reinforced nylon piston with a 13.5 tooth steel rack, made as a strong upgrade for AEG players who run fast, demanding builds. The half tooth in the 13.5 count gives smoother engagement with the sector gear, and all three editions are built from PA66 33G glass fiber reinforced nylon.
Pick the edition that matches your build. The Basic Edition is the entry level option, with stainless steel teeth and a maximum rating of 50 rounds per second and an M150 spring. It has widened rail slots that fit most AEG gearboxes, plus a tapered tail to avoid interference with non standard gearboxes. The PRO Edition steps up to wire cut DC53 (Daido) steel teeth at HRC 60 to 63, rated up to 50 rounds per second with an M180 spring, and it is designed to handle 35+ round per second builds without stripping. The EXP Edition is the lightest of the three, with a narrow, heavily skeletonized body and 42CrMo alloy steel teeth. T238 says it is built for extreme rate of fire setups of 70+ rounds per second, with a 75 round per second maximum and an M180 spring limit.
All three are made for Tokyo Marui standard V2 and V3 gearboxes and clones, including M4, AK, MP5, G36, P90, AUG, and VECTOR models. Check your gearbox, spring, and sector gear setup before ordering.
Piston head angle of engagement (AOE) matters with any new piston. T238 notes that thicker piston heads fit the PRO body directly, while thinner heads need a spacer to calibrate the AOE. Installation means a gearbox rebuild, so it is best for players comfortable with AEG tuning.
Features
- Glass fiber reinforced PA66 33G nylon piston body
- 13.5 tooth steel rack with a half tooth for smoother engagement
- Three editions: Basic, EXP, and PRO
- Basic: stainless steel teeth, M150 max spring, widened rail slots, tapered tail
- PRO: wire cut DC53 steel teeth at HRC 60 to 63, M180 max spring
- EXP: skeletonized lightweight body, 42CrMo alloy steel teeth, 70+ RPS ready
- For Tokyo Marui standard V2 and V3 gearboxes and clones
- 5mm piston head mounting hole
- Made by T238
Specifications
Basic Edition
- Rack: Stainless steel teeth, HRC 32 to 40
- Weight: 15.8 g (±0.5 g)
- Dimensions: 68.8 x 21.6 x 15.5 mm
- Max RPS: 50
- Max spring: M150
PRO Edition
- Rack: DC53 (Daido) steel teeth, wire cut, HRC 60 to 63
- Weight: 17.8 g (±0.5 g)
- Dimensions: 66.4 x 21.4 x 15.7 mm
- Max RPS: 50
- Max spring: M180
EXP Edition
- Rack: 42CrMo alloy steel teeth
- Weight: 10.7 g (±0.1 g)
- Dimensions: 66.8 x 21.3 x 16.1 mm
- Max RPS: 75
- Max spring: M180
All editions
- Body: PA66 33G glass fiber reinforced nylon
- Tooth count: 13.5 (including a half tooth)
- Piston head hole: 5mm
- Platform: Tokyo Marui standard V2/V3 gearboxes and clones
More About T238 and why Amped Airsoft Carries Them:
Founded in 2018, T238 is one of the world's leading online stores, our products are successfully equipped and serviced in many countries around the world, and has always been a creative design and manufacturing center.
To view our full selection of T238 products click here!