OK the cap - first it's left handed threaded...
Second - you are looking at about 3/4 tig welded all the way around - and the detent wont budge cause its about 90% all the way pushed in!
Yes you can do this - invert - and ever so carefully using a fiber type cut off wheel - the good ones on a dremel - cut ever so slowly. - keep mostly to the cap side and straight up and down to the front sight block.
I didn't hurt my threads at all - and its way in - btw - tape up as much of the FSB as you can so if/when the weel jumps out it doesnt scratch it up like mine hehe
OK - listen - remember to remove you act like normal tightening k?
get it down a good amount - look at the front and see the thickness - then guestimate - and all on the weld cut - but not too deep
Using vice grips - lock on to the thread cap - and make sure the front sight block is locked into a good vice - or somebody has a good grip on it with a big pipe wrench... - be careful - it will snap off when ground down and close enough - but dont force it!
a dremel has a thin cutting wheel and generates little heat - and if careful - it will fit perfect - any extra weld can be touched off using wheel like grinder - but get a $9.95 flash hider soon - I think they are going to stop carrying them - left handed ak thread ?
its a pain and I slowly picked at mine for like 2 days - but taking your time is best way
on replacing the trigger group - it's a pain with the shppards crow - which holds the pins in - don't remove it - you don't have to!
get the kit g-2 perfect fit - then take like a flat - see how the sheppards crow pushes this way on each pin - theres onnlt 2 - apply a lil pressure and knock it out with a punch/should go easily by hand - no hammer needed - also you can do either - no order - but hammer with spring is a pain - you CAN take hammer out by turning it and spring sideways - and you can replace it same way.
once switched out - oil all good before installing - place spring ends back over the rear same as it was - check to make sure clear - and test function - way smoother :)
L8r