[tomt308]

Hi. I've got a Bar-10 Vsr-10 clone and whenever I pull the bolt back the piston sear sort of catches the piston, you can hear and feel a click but as soon as you let go the bolt slams back forward.

Any suggestions on how to fix this?

Inside my gun I currently have a Action Army piston, a Angel Custom spring guide, a Angel Custom M170 spring, a ASGI reinforced base sear, a ASGI reinforced spring guide stopper and a PDI piston sear.

 

[Pinguiclia]

Please make a intro post.

As for your problem your sears are either worn or bending. ASGI "reinforced" sears tend to bend before wearing down, especially with a M170.

 

[Dorekido]

got SHS , good price and better then.