Things You'll Need
Instructions
Make sure your rifle is unloaded before changing the stock.
Flip the position switch on the collapsible stock to the full upright position. This releases the stock. Slide the stock off the buffer tube.
Squeeze the new stock's position lever (located in the center of the stock) and insert a small steel rod through the hole in front of the position lever. Pull the rod toward the stock body (the steel rod is holding the stock cylinder open).
Slide the stock onto the buffer spring and remove the rod. The stock will lock into position.