I had problems with the adapter the shop had put it on wrong they had the grub screw to the bottom the shots were going allover so my mate said the grub screw had to be at the top, did that then shots were perfect
So you had to buy an adapter ( half inch unf ? ) and a silencer . How much did it all come to mate , and where did you get it from , woud`nt mind one for my S400
I paid 9.99 for half inch from Pet,s & Pastimes £2.50 delivery nxt day and the silencer was £45.00 from my local gun deale,r got 25.00 back for my old airarm,s one PX