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Thread: AAC Threaded Barrel
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3 April 2015, 10:16 #1Member
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AAC Threaded Barrel
Hey Guys. I just got my AAC Threaded Barrel for my M&P CORE 9mm. BUT I cannot get the thread protector off the barrel to be able to stick it in my gun.
I'm not sure how to go about getting it off. I read soaking it in water might help? Any suggestions?
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3 April 2015, 10:19 #2
Definitely not water. Penetrating oil or a 50/50 blend of acetone and transmission fluid for a soak if needed. Likely applying heat to the thread protector to expand it slightly is all you need to do.
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3 April 2015, 10:32 #3
Are you turning it the right way? Does it have LH threads?
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3 April 2015, 10:44 #4Member
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It is the LH twist threads the 13.5x1 LH.
I will have to get some Penetrating Oil then tomorrow. The only heat I have would be a hair dryer haha.
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3 April 2015, 23:31 #5
I only ask because I recall my very first LH Threaded barrel... didn't realize it was LH and when I thought I was loosening it, I was just tightening it. Oops.
Almost as bad as installing a muzzle break upside down.
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3 April 2015, 23:40 #6
Ooooooh! Shots fired James!
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4 April 2015, 00:02 #7
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4 April 2015, 00:04 #8
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4 April 2015, 00:07 #9
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4 April 2015, 00:08 #10
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4 April 2015, 00:53 #11Member
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All good :). I will let you know how I make out after I get some of that oil. How long do you guys think I should let it soak in there? A couple hours? Then just rinse it off with water? Sorry this whole thing is new to me, I just don't want to ruin anything haha.
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4 April 2015, 00:55 #12
Kroil is the best IMHO. I'd let it soak overnight.
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4 April 2015, 01:21 #13Member
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Ok thanks. I will look for that today when I go out shopping. I assume wal-mart would have it?
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4 April 2015, 02:16 #14
Believe it or not no commercial product has ever come close to acetone/automatic trans fluid. Test after test I have seen it always takes the least amount of torque with that mix. Kroil is almost always 2nd. place but usually double the torque required. It's too unstable in a mixed form to be marketed. It separates very quickly. I keep a glass jar with a mix in it. Shake it immediately before use. Works 99% of the time in a few minutes.
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4 April 2015, 03:00 #15
Found the test results from Machinist Workshop magazine I was speaking of
Nothing = 516 ft. lbs.
WD-40 = 238 ft. lbs.
PB Blaster = 214 ft. lbs.
Liquid Wrench = 127 ft. lbs.
Kano Kroil = 106 ft. lbs.
50/50 blend of ATF and Acetone = 50 ft. lbs.