This factory Sig Sauer threaded barrel adapter will convert your .22LR threaded barrel from the factory threads of M9 x 0.75 to 1/2 x 28 thread pattern, allowing you to use accessories with the more common threads.
Great adapter to add accessories to your GSG Firefly. It fits perfectly.
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Gregory Hood
Aug 28, 2019
Perfect fit for my GSG. Exactly what I needed at a great price.
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grant amaral
Jul 20, 2019
Bought two of these for my Sig Sauer Mosquito. This is a quality part at a great price. Fits perfectly on the barrel and matches with the suppressor. Buy one.
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Edward Hackett
May 21, 2019
I was skeptical at first. Tiny little thing... fit perfectly, smoothly and look to be of excellent quality. I’m sold. Probably order a couple more to leave them on Firearms and suppressors so I won’t lose them.
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John Harte
Apr 9, 2019
Fit perfectly great price and shipping.
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