![POF USA P415 EDGE .223 Rem/5.56 NATO -16.5″ MATCH GRADE BUTTON RIFLED BARREL – SHORT STROKE PISTON GAS SYSTEM – CERAKOTE BLACK FINISH - Watson Precision Firearms LLC POF USA P415 EDGE .223 Rem/5.56 NATO -16.5″ MATCH GRADE BUTTON RIFLED BARREL – SHORT STROKE PISTON GAS SYSTEM – CERAKOTE BLACK FINISH - Watson Precision Firearms LLC](https://watsonprecision.com/wp-content/uploads/2021/11/IMG_0301-scaled.jpg)
POF USA P415 EDGE .223 Rem/5.56 NATO -16.5″ MATCH GRADE BUTTON RIFLED BARREL – SHORT STROKE PISTON GAS SYSTEM – CERAKOTE BLACK FINISH - Watson Precision Firearms LLC
How is HK's short-stroke system used on the G36/416s different from the short-stroke piston on the AR-18 that it was based on? - Quora
![The G95K is a modified AR-15 type rifle with HK's reliable short stroke gas piston system. - European Security & Defence The G95K is a modified AR-15 type rifle with HK's reliable short stroke gas piston system. - European Security & Defence](https://euro-sd.com/wp-content/uploads/2020/03/The-G95K-is-a-modified-AR-15-type-rifle-e1583232258783.jpg)