Quick Summary
The Airsoft Parts CYMA 328mm SIR System RIS Handguard Rail System is designed for M4 M16 Series AEG use, and it is listed as suitable for the CYMA CM508 M4 SIR rifle. It combines aluminium and polymer construction with metal rails, making it a practical replacement or upgrade part for compatible airsoft rifles.
Who It Is Best For
This handguard rail system is for anyone looking for a CYMA SIR style front end for an M4 or M16 Series AEG. It will suit buyers who are checking fitment carefully and want the listed rail layout and dimensions for a compatible build.
What To Know Before You Buy
The key point is compatibility. It is described as suitable for M4 M16 Series AEG rifles and for the CYMA CM508 M4 SIR rifle, so buyers should check the selected variation and fit before ordering.
Pros: It offers a mixed aluminium, polymer, and metal rail construction with clearly listed dimensions.
Cons: Fitment should be checked carefully, especially if your rifle is not the listed CYMA CM508 or a compatible M4 M16 Series AEG.
Common Buyer Questions
What rifle is this for?
It is described as suitable for M4 M16 Series AEG rifles and the CYMA CM508 M4 SIR rifle.
What is it made from?
It is made from aluminium and polymer, with a metal upper, ABS lower handguard, and metal rails.
What are the listed dimensions?
The full length is listed as 328mm, with a bottom length of 182mm, top rail length of 145mm plus 162mm, bottom rail length of 99mm, and side rail length of 61mm for 2 pieces.
How much does it weigh?
It is listed at approximately 744g.
Do I need to check fitment before ordering?
Yes. The most important check is whether your rifle matches the listed M4 M16 Series AEG compatibility and the CYMA CM508 fitment.
Key Details
| Detail | What it means in use |
|---|---|
| Product type | SIR System RIS handguard rail system |
| Compatibility | Suitable for M4 M16 Series AEG rifle |
| Listed fitment | Designed for CYMA CM508 M4 SIR rifle |
| Construction | Aluminium and polymer, with metal rails |
| Handguard materials | Metal upper and ABS lower handguard |
| Full length | 328mm |
| Bottom length | 182mm |
| Top rail length | 145mm plus 162mm |
| Bottom rail length | 99mm |
| Side rail length | 61mm, 2 pieces |
| Weight | Approximately 744g |
Final Buying View
If you need a CYMA SIR style RIS handguard for a compatible M4 or M16 Series AEG, this is a clearly specified option with useful size details. It is best suited to buyers who can confirm fitment before ordering and want the listed rail setup for their build.
Check the compatibility and dimensions against your rifle, then choose with confidence.
