Folding adapter for buffer tube

Folding adapter for AR buffer tube made by TrueNorth, I had it on milspec buffer tube.

it will not work with AR15 rifle which has a buffer, only on a stock that uses a AR15 buffer tube

Here is how it was listed on their website:
Folding Stock Adapter for WK180-C Rifle

SKU: 688787-WK-STK-ADPT 688725

Calgary Cash sale preferred or you pay for shipping