▲ 27 r/Vz61
Easy way to stop charging handles from grinding finish off
Find spring that sits nicely in the charging handle slot. For me this was a 0.4*4 spring.
Cut a coil or two off. Repeat x2
Place into bolt carrier
Test fit.
If everything moves nicely and the charging handle can't touch the upper reciever then you win. If it still touches you have too few coils. If it has a lot of friction or binding, you have too many coils and the bottom retainer of the charging handle is grinding against the inside of the upper receiver.
u/Ivorylance — 12 days ago