AAC Threaded Barrel

[Credz]

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?

[SINNER]

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.

[UWone77]

Are you turning it the right way? Does it have LH threads?

[Credz]

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.

[UWone77]

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.

[Ride4frnt]

Ooooooh! Shots fired James!

[UWone77]

Ooooooh! Shots fired James!

You know I'm getting my money's worth out of this...

Just add it to the list, like Luis not paying taxes, The Ginger unboxing pics...

[Ride4frnt]

You know I'm getting my money's worth out of this...

Just add it to the list, like Luis not paying taxes, The Ginger unboxing pics...

I thought about Luis and his IRS situation today when I had to remind my girlfriends dad to call HR block.

ETA: I've been the butt (ass) of a joke or two around here. It's nice to pass the torch.

[UWone77]

I thought about Luis and his IRS situation today when I had to remind my girlfriends dad to call HR block.

ETA: I've been the butt (ass) of a joke or two around here. It's nice to pass the torch.

LOL... that's true Mr. I traded a San Tan Lower for a bag of roll pins...

[Ride4frnt]

LOL... that's true Mr. I traded a San Tan Lower for a bag of roll pins...

Not quite a bag of roll pins. A CMT upper (which I love) and a RAC (which I installed correctly). Still felt like a bag of roll pins.

[Credz]

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.

[UWone77]

Kroil is the best IMHO. I'd let it soak overnight.

[Credz]

Ok thanks. I will look for that today when I go out shopping. I assume wal-mart would have it?

[SINNER]

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.

[SINNER]

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.