Excellently crafted stainless steel 1/2x28 thread protector with deep knurling and relief cuts on both ends for O-ring positive engagement. It is very heavy duty, weighing 9 grams as opposed to my Glock thread protector ant 5.3g. Absolutely perfect condition, threading is clean and sharp zero signs of wear, brand new. Real machining time went into crafting this. Hands down best thread protector I have ever seen. Asking $15 shipped.
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