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This aluminum Hop-up chamber fits the original version M870 (T.Marui). It does NOT fit the new version (2015) M870 loading nozzle because it does not have a small centre hole. For the new version (2015) M870 (T.Marui), you need a new version Hop-up chamber (i.e. #4059) together with our Power-up Loading Nozzle (i.e. #4045T, #4045).
This item is manufactured under the CNC process and:
1) For Tokyo Marui M870 Airsoft
2) improves the smoothness of loading BB;
3) increases hop-up performance;
4) strengthens construction and durability;
Remark: for the best air-tightness in the hop-up chamber and smoothness installation, please put some lubricating grease all around 3 hop-up buckings and barrels inside the hop-up chamber.
| SKU | WII-4046 |
|---|---|
| Manufacturer / Brand | WII TECH |
| Color | Black |
| Major Built Material | Aluminium |
| Size | N/A |
| Disclaimer | Upgrading airsoft guns require necessary skill & technique, manual modification is necessary, consult expertise if needed. |
