Product Description
RETRO Arms - CNC Hop Up Chamber for M4 AEG (PRO)
The RETRO Arms CNC Hop Up Chamber PRO is a precision machined hop up chamber for M4/AR15 style AEGs. It is a redesigned version of the RETRO Arms BASIC chamber, with an adjustable feeding shaft that lets you fine tune how BBs feed from the magazine.
The chamber is CNC machined from aircraft grade 7075 aluminum. The feeding shaft height adjusts in small 0.2mm steps using the included stainless steel shims, so you can solve magazine fit and feeding problems without guessing. Once the height is set, secure the thread so it stays put.
An O ring on the feeding shaft helps hold BBs in place when you pull the magazine, and a collet nut at the front clamps the inner barrel firmly. The collet nut fits inner barrels with an outer diameter of about 8.4 to 8.5mm. The main and feeding shafts are tuned to work with most common hop up buckings and to give more consistent feeding.
It is built for the Tokyo Marui standard M4/AR15 platform. The PRO sits between the BASIC and ULTRA chambers in the RETRO Arms range: it adds the adjustable feeding shaft over the BASIC, but not the front to back chamber adjustment found on the ULTRA.
Installation means opening the gearbox area and fitting your own bucking and inner barrel, so it is best for players comfortable with AEG hop up work.
Features
- CNC machined 7075 aluminum body
- Adjustable feeding shaft with 0.2mm shim steps
- Stainless steel shims included
- O ring on the feeding shaft holds BBs during reloading
- Collet nut holds the inner barrel firmly
- Fits inner barrels of about 8.4 to 8.5mm outer diameter
- Tuned shafts for use with most common hop up buckings
- Tokyo Marui standard M4/AR15 platform
- Made by RETRO Arms
Specifications
- Brand: RETRO Arms
- Model: CNC Hop Up Chamber AR15 / M4 PRO
- Manufacturer item number: 9426
- Material: CNC machined 7075 aluminum
- Finish: Black
- Feeding shaft adjustment: 0.2mm steps with shims
- Inner barrel outer diameter: About 8.4 to 8.5mm
- Barrel retention: Collet nut
- Platform: M4/AR15 style AEGs (Tokyo Marui standard)
More About Retro Arms and why Amped Airsoft Carries Them:
At Amped Airsoft, we choose to carry the best Airsoft parts for AEGs and HPA guns alike. For unparalleled craftsmanship, reliability, and performance in every part we carry RETRO Arms to serve our loyal customers the finest in airsoft parts and upgrades!
To view our full selection of Retro Arms products click here!