This is a Rogers stock with an aluminum AK stock tube that will fit most fixed stock rear trunnions except for Chinese models. The stock and aluminum tube are made in the USA. Only counts as one 922r part though.
The stock locks onto the tube and won't rattle when the lever is put in the lock position. The tube is a commercial sized tube and the stock is installed on the tube.
From the manufacturer's website:
The Rogers Super-Stoc™ (commonly called the Super Stock) is the ultimate refinement in AR/M4 stock technology. The Rogers Super-Stoc™ is the most stable, collapsible stock available due to the innovative cam-lock system developed by Bill Rogers, famed shooting instructor, inventor of holsters, target systems, and other related products, and his staff of engineers. The cam-lock system completely removes any slop or play inherent with collapsible stocks. Once the desired stock position has been selected, the stock can be locked down solid simply by clicking the cam-lock lever upward. Pressing the quick-release lever will disengage both the cam-lock, and the detent pin, allowing you to quickly readjust the stock position.
This item is made in the United States and counts as a 922r compliant part.