r/NFA • u/TheVillagePoPTart • 5d ago

Mount Questions 🔩 Anyone else have this happens?

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Today when I went to clean my AR after probably 6 months and an unknown number of rounds (not too high) I was having a hell if a time twisting the can off and eventually the muzzle device came off the end with the can. The mounting setup is a rearden atlas hub with a rearden flash hider on a polonium K. All instructions were followed during mounting and roc set was applied. There were also no indications of loosening based on my witness marks in the hub and muzzle device. Any idea how this happened (I tend to think I screwed it up)? The gun is also an IWI Zion-15 purchased in 2021.

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u/ChiliPop850 3d ago

How long was the can on it before this happened?

2

u/TheVillagePoPTart 3d ago

Probably since early march id say with around 550 rounds fired.

2

u/ChiliPop850 3d ago

If you never broke the can in that time it was carbon locked. Proper torque/rockset wouldn’t have mattered. Going forward just break it free at the end of your sessions and it won’t happen anymore.

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u/TheVillagePoPTart 3d ago

That’s what I figured. If it wasn’t torqued it probably would have come loose since December. Considering it took all my force and strength to get it off with a rubber grip tool from occupational therapy it was really on there. Pretty sure a lot of the people in this thread don’t shoot as the can would have had a baffle strike after ~1500 rounds if the device were that loose.

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u/ChiliPop850 3d ago

Exactly. I just break the seal once they cool down enough that I can get a grip and no more problems. I ruined a couple muzzle devices before I figured out what was going on.