The "Firefly hard" are hopup bucking and not the actual hopup assembly.
You can keep the stock hopup and see if it keep up. At 450fps, you should be ok for a while if you don't change your hopup assembly and barrel.
You have to upgrade the heck out of your rifle anyway, so you will be getting a PDI hopup or other aftermarked hopup that inlcude a bucking that should do the trick.
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Vérificateur d'âge: Terrebonne
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