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Rifles, Reloading, Optics, Equipment
Gunsmithing
Need help with barrel threads
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<blockquote data-quote="shortgrass" data-source="post: 1496057" data-attributes="member: 24284"><p>The length from the shoulder to the muzzle depends upon the muzzle attachment. I have seen different lengths on different brands of muzzle breaks. On most suppressors and suppressor attachments, where you attach the suppressor in a "quick release" device that stays on the barrel, the threads are .625" from muzzle to shoulder where it seats. Most muzzle brakes fall somewhere between .600" and .650". Just another good reason to have the brake in hand before threading the barrel. Everybody and their dog make muzzle brakes and it would be nice to have a standard to go by in both class of thread and length of threaded tenon, but no such 'luck' currently. Why are suppressors and the attachments standardized at .625"? Probably because the threaded length of the muzzle on AR platforms is .625"...………...</p></blockquote><p></p>
[QUOTE="shortgrass, post: 1496057, member: 24284"] The length from the shoulder to the muzzle depends upon the muzzle attachment. I have seen different lengths on different brands of muzzle breaks. On most suppressors and suppressor attachments, where you attach the suppressor in a "quick release" device that stays on the barrel, the threads are .625" from muzzle to shoulder where it seats. Most muzzle brakes fall somewhere between .600" and .650". Just another good reason to have the brake in hand before threading the barrel. Everybody and their dog make muzzle brakes and it would be nice to have a standard to go by in both class of thread and length of threaded tenon, but no such 'luck' currently. Why are suppressors and the attachments standardized at .625"? Probably because the threaded length of the muzzle on AR platforms is .625"...………... [/QUOTE]
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Gunsmithing
Need help with barrel threads
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