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25 Posts
i have read about some concerns about the quality of polymer frame, because in the owners manual it says not to use teflon based lubricants but glock hk s&w and sprinpfield do not have any such a warning.what fn means is not to soak the frame in these products.these lubricants and cleaners can weaken and discolor polymers like zytel, the other manufactors just do not give you the consumer the heads up,i am greatful fn gives the facts.they are just remembering when most guns were metal and when disass. parts were soaked overnite in cleaners and lubricants.