GBBR Mechanical Parts

Designed for the Tokyo Marui M4 MWS GBBR Series. Textured enlarged magazine release that will provide a better grip compared to the stock one. CNC...

Designed for the Tokyo Marui M4 MWS GBBR Series. Textured enlarged magazine release that will provide a better grip compared to the stock one. CNC...

This kits includes a total of 23 springs for the Marui MWS series of GBBRs; as comprehensive as it gets. Includes all springs shown.

Guns Modify drop in nozzle V3.5 for Tokyo Marui M4 MWS GBBR. Compatibility: Tokyo Marui M4A1 MWS GBBR. A reinforced nozzle designed to improve th...

Guns Modify drop in nozzle V3.5 for Tokyo Marui M4 MWS GBBR. Compatibility: Tokyo Marui M4A1 MWS GBBR. Designed for 1 Joule markets (Japan Versio...

The Guns Modify high speed bolt carrier is a high quality, super lightweight upgrade over the stock out of the box part found in the stock gun, w...

This valve from Guns Modify is designed to add strength over the stock valve and helps improve gas consistency and efficiency. Material: Stainles...

The Guns Modify high tenacity polymer buffer for the TM M4 MWS is a premium upgrade part designed to work better than the out of the box part in t...

A black coloured steel gas block for MWS series of GBBRs. Includes the dummy gas tube and necessary screw fixings.

A silver coloured steel gas block for MWS series of GBBRs. Includes the dummy gas tube and necessary screw fixings.

Guns Modify reinforced internal nozzle components. 150% nozzle return spring. Compatibility: Tokyo Marui M4A1 MWS GBBR. GM0335.

Suitable for the Tokyo Marui M4 MWS GBBR Series. Heat Treated. For Marui / GM / HA MWS M4 GBB.  Steel Construction. Black in colour.