[atctimmy]

I was looking at an add for PTR 91s. They said that the rifles for sale had the navy style polymer trigger group. What is the difference between a standard trigger group and the "navy" trigger group? Should these be avoided?

 

[Taurahe]

If I am correct the polymer trigger group utilizes polymer compents to minimize corrosion in saltwater environments. To what extent I have no idea

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