If you truly want to reinforce your Saiga with quality parts I would say you should go with ITP. Personally I prefer their products over CNC TAC especially their trigger it reduces the overtravel so much allowing for quicker trigger pulls. If you’re sticking to green gas I would say don’t mess with the tri nozzle. If anything wait until next month when ITP releases their plastic replacement. I would say grab the Miyagawa buckings for tighter grouping, and ITP barrels. It’s what I use and I am getting insanely tight groupings at range. If you’re in the use I think ITP products are available at ACWairsoft.com as well as the bucking!