Thread your unthreaded .557" barrels to 14mm x 1 LH with this premium grade thread adapter. Made out of high grade black oxidized steel, simply slip this adapter over the end of your barrel, tighten the brass set screws, and that's it! Now you can mount standard 14mm x 1 LH threaded fittings on the end of your unthreaded barrel! Please confirm your barrel measurements prior to purchase.
Inner Diameter: .557"
Outer Threads: 14mm x 1 LH
Material: Black Oxidized Steel
Set Screws: x4 - 1/4"-20 Brass (Allen Type)
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