yes, replace the solid magazine nipple with the drilled one. Then remove your remote nipple and replace with a 1/8" npt plug.
If you choose to run as just a pistol minus the tank adapter, remove the three larger screws holding the tank adapter on the gun. Then take the smaller of those screws off of the tank adapter and screw it into the air port on the lower right side of the gun. make sure to leave the little o-ring in place as this is what actually seals off the air passage. Also, take care to not overtighten this screw as the aluminium body is VERY easily damaged!
Hope this helps!
ANGEL SB Pewter/Gold
T8 Black Nickel
Phantom, Phantom bolt action
RIP APS, It's been a great ride!