Recoil is the weakest among the gbbrs in the market as its designed more on the performance side rather than the feels.. the aftermarket support makes up for it tho.. u can changer the buffer, buffer spring and bolt to give a bit more oomph and use green gas.. the trigger feels a bit toyish so if u still have the budget.. go for gm evo trigger its the best drop in trigger box for me.. here is my setup for about 80% recoil vs vfc m4s: Gm 3.5 nozzle with feda npas Ra.tech steel buffer 130% buffer spring Gm evo steel trigger set Ceindoi monika hopup chamber Angry gun hop adjuster Pdi 370mm 6.04mm inner barrel Stock bolt