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Easily convert your .40 caliber Glock 22, Glock 20, Kel-Tec Sub-2000, L1A1, US M1/A1) barrel threads to .578”-28 RHThe adapter has a black stainless steel construction with outer threads of .578-28 RH and inner threads of 9/16-24 LHThe thread depth is 5/8” and the internal hole size is .436”
Convert your 9/16-24 RH (.40 caliber Glock 22, Glock 20, Kel-Tec Sub-2000, Ruger Mini-14 [before 7/10/09] L1A1, US M1/A1) barrel threads to .578”-28 RH with this premium black stainless steel thread adapter from Infinite Product Solutions. Compatible with both rifle and pistol threads, this is the perfect solution for this particular thread conversion!
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