Thank you for your reply matti :D on second search i got an 8mm OD x 2mm Wall 900mm Long but will the technique on this video work? https://www.youtube.com/watch?v=iVYKeKDB_kU i have to order everything online and shipping actually cost me 2 or 3 times the price of the product sometime, it is becaus...

ghjg.png hi everyone, i need some help improving my air rifle im not a pro at this, i prefer to seek help before making a mistake some specs: shoots 6mm steel ball bearing 900mm long 7mm inside diameter barrel (cant get a smaller one ) im using a 2 position 3 way valve and a Qev as shown in the pic...

Hi i am building a qev spud so it can be a semi-auto i need help concerning the air tank , what size should it be ?
Can someone could link me a post so that i can get an idea of what size ect.. I dont know a lot about the pressure and the maths surrounding it.
Thanks for your help