HAO Parts

HAO's Marui MWS BCG-ecoline is made from the 6061 alloy with Hard Anodizing finishing.It comes with the bearing and steel made weight block 

We  also added the HAO developed BCG enhanced sticker. Which makes the problem of jamming caused by worn off BCG

HAO's latest design : "Charging handle recoil system" is now ready to ship, In this package you will receive the fully "recoil" PTW charging handle in set ;
Charging Handle (AR15/HK416)
Gastube  (Gastube/Direct Gastube)



Here're the combination: 

HAO's

HAO's PTW cylinder/barrel nut wrench is your must-have tool for your PTW repairment.Combine Cylinder front/rear, cylinder hex head, cylinder gear hight adjustment, barrel nut for both AR & HK416 tool.

The new MK3. is now release, which will fully compatible with Inifity version!


New Feature of MK3.:

Removable front cap positioning pins for the Infinity new HOP UP unit
Enlarged groove for the Infinity gear box
Compatiblewith pre-2021 systema gear box

The new MK3. is now release, which will fully compatible with Inifity version!


New Feature of MK3.:

Removable front cap positioning pins for the Infinity new HOP UP unit
Enlarged groove for the Infinity gear box
Compatiblewith pre-2021 systema gear box

The new MK3. is now release, which will fully compatible with Inifity version!


New Feature of MK3.:

Removable front cap positioning pins for the Infinity new HOP UP unit
Enlarged groove for the Infinity gear box
Compatiblewith pre-2021 systema gear box

The new MK3. is now release, which will fully compatible with Inifity version!


New Feature of MK3.:

Removable front cap positioning pins for the Infinity new HOP UP unit
Enlarged groove for the Infinity gear box
Compatiblewith pre-2021 systema gear box

Hop Up Chamber for MWS HK416