Just recently got my PSA-10 and have read a lot on them here, so purchased the KAW Valley Precision stock hardware kit with the stiffer spring and 5.6 oz buffer since the Armalite kit has been out of stock for some time. I am currently trying to find a rifle length gas tube since of course they are still shipping with the gas tubes too short. I am hoping someone has purchased one from somewhere other than Armalite since those are back ordered as well. Any help would be appreciated!