AR70/90 Rear Takedown Block

Description

This rear takedown block is part of the AR70/90 upper receiver internal assembly that you didn’t get when you bought your parts kit. It welds inside the sheetmetal shell, and provides a place for the rear takedown pin to pass through and retain the upper. You will need one of these for each Receiver Flat.

These blocks are fully machined from low-carbon steel, to make welding them to the receiver shell easier and neater. They’re machined in the middle like the originals to help shave weight and keep the original look.