^^^^^^^It fits on the Authentic well enough, but the DR o rings need a good bit of lube. If it’s a clone the dimensions could be different on the deck. I’d advise having a fanny about with the o rings- try and fit the cap with them off totally then work it from there.
^^^^^^^
This or stop been cheap and buy the authentic it's £25 ffs [emoji23]
Me neither I know clones have there place for trying before you spend £70 plus on a atty but for something so cheap it's pointless [emoji23]$21 on Fasttech
honestly I don't know why people bother.