Thread Protectors

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All solvent trap kits include either a ½x28” or 5/8×24”. The 1/2×28 thread pattern is used for 9mm, .22lr, and .223/5.56 NATO chambered firearms. These are the more popular calibers industry-wide, and therefore ½x28” is the most popular thread pattern. The 5/8×24” thread pattern is very popular as well, which is the thread pattern used on most larger caliber firearms, such as the .308, 7.62×39, .30 Cal, 6.5 Creedmoor, 300 Blackout and more.