HK 91A3 IMPROVED BUFFER SYSTEM
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Available now. HK91 A3 colapsable/telescoping stocks have a fairly stout felt recoil. I have developed a new piston and spring assembly that reduces the recoil up to 30%+. Works on any HK A3 stock attacthed to a .308 rifle, even the HK51 and Vector V51. Above is the prototype installed. Below in the picture at the top is the improved piston and spring, next is the HK A3 stock buffer and spring. The next item is the backing plate that retains the buffer assembly. This contains a small spring and piston that applies pressure to the stock in its closed position. It will need to be shortened slightly to allow full travel of the longer piston.
For installation instuctions, click here. |