RUBBER HOP UP ADAVANCED 70 DEGREE AEG AIMTOP (EA-68-70)

A new hop-up rubber will allow for more accurate adjustment of the hop-up.
High-power upgrades require harder hop-up rubber as the softer material may warp due to the increased power.
This hard type hop-up rubber can be used on the sniper rifle and effectively improve shooting in semi mode.

Dedicated to springs with M120-150 / 350-490fps power
The set contains two hop-up rubbers and two spacers.