Hi. Does anyone locally have experience removing the surefire socom sfmb muzzlebrake that's been attached w/ rocksett. I need to take the 1 i currently have on an aero m5. I google it n found different ways. I have a regular vise. Need help. It won't budge. I bought the rifle used.

Interstingly enough, I had a nearly identical situation. On my gun, it was a Remington 700 based rifle in 308 with a Surefire brake that was put on with Rocksett.

I tried all the tricks. Heat, cold, boiling water, penetrating oil, shock, everything. My rifle was assembled by GA Precision, so I called George up and asked him what to do.

He told me I was fucked. If it's been on for more than a few hundred rounds of suppressed fire, it's stuck for good. He literally cuts them off, then recuts threads and a crown.

I didn't like that answer, so I used my Brownells Barrel Vise, and then rounded off the flats from wrenching so hard. After that, I used a pipe wrench and cheater bar. It came off, but stripped all the threads on both the barrel and brake, but now it's off... and now I gotta recut threads and crown.

jfc at that point why not just do a pin and weld.

Soak it in cold water for several hours. Rocksett gets stronger when heated at all. I believe the manufacturer of Rocksett recommends soaking in water to release.

I’ve soaked it in boiling water and came off.

From Flexbar.com the makers of Rocksett:

https://cdn.shopify.com/s/files/1/0061/ ... c.pdf?2026

"The only way to break a proper Rocksett bond is to soak the part in hot water for 20 minutes or more
and then forcibly remove the components."

For some reason my searches for "brake" and "rocksett" failed, but I finally found this.

viewtopic.php?f=40&t=43862&p=1305898#p1305898

Thnx, everyone for all info. I soaked it in hot water for 1hr n was able to break it loose using a cheater bar. I'm just glad I got it done w/ out damaging anything. Thnx again.