cp flame drop forward
cp asa on/off
q lock feed neck
12" two piece all american barrel
cp roller trigger
kila magnetic detents
smart parts firebolt
new designz qev
DXS pulse loader
68 cu pure energy tank with cp nipple and dye cover
If you don't want any more damaged threads on your air tank or co2 tank then get this. It holds snug tight onto your tank and it holds your o-ring in place at the top of your tank. I got mine for free at my local proshop but they only run for 3 bucks. They also have a variety of colors.
If you need to trust something to protect your threads then buy this you will be relieved.