At the end of 2010 we launched reinforced piston for manual SVD . It was a purely Czech product with unique technical solutions. Similar doesn`t exist on the market . For example a steel ring for better durability, or AEG piston head with bearing , which we know from electric weapons. These first generation pistons were very favourite on the market so competitive companies decided to ignore copyrights and started to make a copies. For example PPS/SHS. But except a few material changes they did not bring any improvements. So at the end of 2013 we released second generation of these pistons. Mainly piston head has been improoved.
And now, one year later, in late 2014, we release 3rd generation of this favourite product. It has minor improovement marked in red bellow.
It is evident that the body and the steel ring remained unchanged. We are staisfed of the ring material and it can work even on the strongest springs .
Package include POM spring washer. Inserted into the piston tensile spring and increase FPS. It also eliminate the loss of different depth of the piston with respect to the basic manufacturer of pistons. This ring can be used up to M170 springs.
Piston is for manual SVD brands A & K or ACM.