10X1MM to 1/2x28 Right Hand Adaptor for FN FiveseveN and Ruger 57
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Amazing quality for the Price
These where hard to come by a while back and I am glad they are back in stock. This is a must for any 5.7 owner with a threaded barrel. High quality, durable with a slim profile.
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5.7 FN barrel
A tighter pattern stainless steel
