( AGM-ADD 1 ) 1/2 inch UNF Thread Protector for Silencers & Sound moderator Adaptors Stylish knurled finish. 11mm approx in width. ( Made in UK ) Not only is this a superb add on to any of our adaptors, in order to protect your thread when the silencer is removed, it is also ideal to protect the 1/2 UNF thread on many other guns.
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