Tokyo Marui MWS M4A1 Upper Receiver with Hop-Up Unit

This is an upper receiver for the Tokyo Marui Gas Blowback Machine Gun, M4A1 MWS. This item is sold as the receiver alone, but it comes with the unit including the hop-up adjustment dial already installed internally. Please use this as a replacement part or as a base for customization.

As this is a used item, there are scuffs and scratches throughout due to use. Please note that the dust cover and bolt carrier set are not included. The photos show everything included, so please check the contents carefully before considering your purchase.

Please carefully check the posted images for the condition of the item, and if you have any questions or concerns, please be sure to ask in the comments before purchasing. To prevent any issues, we ask that only those who agree to a no-claims, no-returns, no-cancellations (3N) transaction purchase the item, as we cannot accept returns, refunds, or complaints after purchase.