Yes the stock is (was) adjustable, it came with a larger bolt knob, which can be included instead of this one if wanted and it came with a picatinny rail installed, but here it has been replaced anyway. The actual stock inlet is the same though - also for the tactical, sporter and I think CTR too.
This rifle spent all of its life in a chassis which is now in use elsewhere hence the bare barreled action for sale.