l96 upgrades

Hey!
i have owned a l96 mb01 for a year now and i have managed to fully upgrade it. I have upgraded basically all parts and im hitting enemy players every 1.2 shots, maximum range i have hit with single shot is 110m, but usually i dont go over 90m, which is basically maximum for that rifle
List of upgrades(what do you think what, if neccery i would have to upgrade?):

--my rifle: https://airsoftpro.cz/en/airsoft-gun...ozka-od-detail
--trigger set: https://airsoftpro.cz/en/gun-parts-u....-gen.2-detail
--cylinder set: https://airsoftpro.cz/en/gun-parts-u...08-nikl-detail
--action army hop up chamber : https://www.airsoftzone.com/en/L96-H...y-18137en1335/
--m170 spring: https://airsoftpro.cz/en/gun-parts-u...560-fps-detail
--maple leaf 80 degree bucking : https://airsoftpro.cz/en/gun-parts-u...rane-80-detail
--maple leaf omega hop up nob: https://airsoftpro.cz/en/gun-parts-u...k-omega-detail
--action army inner barrel 6.01x455mm : Relvad.ee
--precision ammonition .43 bb : https://www.patrolstore.com/ASG-Accu...-0-43g-bb.html
--silencer adapter : https://airsoftpro.cz/en/guns-access...otocivy-detail
--silencer : Relvad.ee
--stock 30 round mags : https://airsoftpro.cz/en/magazines/f...-30-ran-detail
--a fancy after scope(originally for hunting rifles), but dont remember the name, so i cant tell you what it was, but it has 3-9 times zoom, 50mm lens, parralax, wind/elevation adjustment and illuminated reticle.

only thing left in stock is barrel spacers(i have taped barrel,couple of turns around barrel in same place, and put spacer on top of it so it will lock in place and hold thght. Should i upgrade spacers?
--Link : https://www.airsoftzone.com/en/L96-I...y-10826en1277/

also what bb should i use? right now im using .43 precission ammonition, which has nice quality, not the best, but pretty good to be honest.