This set of two different sizes of hammer weights for your FX impact are perfect if you want to do a power-tune on your FX Impact. The standard hammer weight FX uses is about 6 gram. Our set contains 2 weights; 1 x 7.5 gram and a 8,5 gram so you can setup your rifle exactly to your own wishes.
They are compatible with the FX Impact MKI, MKII and M3.