Surefire X300 Ultra B Model - any issues with the cross bolt?

Hudson456

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Jan 23, 2016
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Just ordered one of these and have read a bunch of reviews (Amazon, AR15.com) saying that the new cross bolt system has a major flaw and breaks readily. Any users here own this new B version? Please comment on your experience with the new clamp!


Thanks
 

Inebriated

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Joined
Jul 10, 2011
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102
I've got three now, no problems on my end. I tighten by hand, and then a quarter turn with a dime or case rim per Surefire's instructions, and I don't feel any undue pressure when tightening, and they haven't loosened with recoil either. I was iffy as well, but I've had no issues.

ETA - full disclosure, one is only a weekend old. But the other two have been mounted a ton of times and have a couple thousand pistol and rifle rounds through them.
 
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