What our friend is asking, i beleive, is he will install a servo recoil which means no more airsoft unit which provides the elevation.<div>
</div><div>I would cut up the airsoft unit so that it still acts as the elevation unit and house the recoil servo in it.</div><div>
</div><div>Or get a recoil unit (you won't be able to use the clark real servo feature though).</div>