Adjustable firearm stock

A firearm comprising:

• a frame having a first attachment facility adapted to receive a buffer tube defining a cavity adapted to receive a buffer spring operable to interact with a bolt;
• the frame having second attachment facility spaced apart from the first attachment facility;
• a telescoping stock defining a buffer tube bore closely and slidably receiving the buffer tube;
• the stock defining a guide rod bore parallel to and laterally offset from the buffer tube bore;
• an elongated support element slidably received in the guide rod bore;
• the support element having a forward end operable to removably engage the second attachment facility;
• and
• wherein the forward end of the support element is expandable laterally between a reduced-width condition and an enlarged-width condition, wherein the reduced width condition enables insertion and removal of the forward end from the second attachment facility, and the enlarged width condition engages the second attachment facility to secure the support element to the frame.