Tokyo Marui MWS Custom Upper RIS2 12.25 inch Gas Blowback

This is a complete upper receiver set for the Tokyo Marui M4 gas blowback.
It is the MK18 RIS2 12.25-inch handguard type.

The inner barrel, packing, and chamber are all genuine, so it will not exceed legal muzzle velocity.

Please check the photos for the condition.

This is a used item, so please only purchase if you understand its condition.
Thank you for your consideration.

For Mercari regulations:
Manufacturer: Tokyo Marui
Material: Aluminum die-cast
Power: Cannot fire BBs as it is only the upper receiver.