Rival Arms RARA300001D Thread Protector 9mm Luger Stainless…
J&E Machine Tech
JE THREAD PROTECTOR AR10308/762 5/8X24 TPI SILVERFEATURES: -AR10 .308/7.62 steel thread protector -Manufactured for easy installation -Includes crush-washer
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$10.20Closest matches by brand, type, and specifications.