solo issues

[TWS]

My friends solo works great with the factory mags, but when he uses his mag extensions verytime he fires a shot his slide locks back after every shot. Im not much of a gun doctor. Anyone else ever had this problem.

 

[Compuvette]

All I use are the factory six-rounders and with the right ammo it runs no problem.

 

[TWS]

I dont see how a magazine could cause it to do this, but his factory six's work great as well its just when he puts in his extended magazines when it locks back?