I'm looking to replace the standard birdcage flash hider on my AR15 barrel so I can replace it with a YHM Phantom. I emailed Armalite and asked about the specific upper assembly I had and got this response:
"The EK0446B is a pre ban upper and the flash suppressor shouldn't be pinned and welded. If you see a faint light 3/8" circle at the 6 o'clock position of the FS then it's pinned and welded and we can remove it here for $60 labor. It shouldn't be though. The FS may be Loctited on which means you may have to add some heat before removing it. It has a right hand twist so use a padded wrench to remove it. Turn left to loosen."
It doesn't seem to be pinned and welded, but I can't get it to budge with a wrench! I heated it up with a hair dryer with no luck. I'm sure I can get it off with enough force, but I'm afraid of deforming the rest of the rifle with that much pressure and want it done properly.
Can someone suggest a decent gunsmith who can do this for reasonable $$$?
AR-15 flash hider removal/
- HighVelocity
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Re: AR-15 flash hider removal/
A hair dryer is not what I would call heat. You need a lot more. I've been able to get them loose with a hand held butane torch. You also need to secure the barrel. You cannot hold onto it and expect to get the leverage you need for the wrench. You need a bench vice with lead/leather jaws and/or an upper receiver block to hold the upper in the vice.
Even with two people, it's unlikely that you'll break it loose without real heat and a vice.
Even with two people, it's unlikely that you'll break it loose without real heat and a vice.
I am scared of empty guns and keep mine loaded at all times. The family knows the guns are loaded and treats them with respect. Loaded guns cause few accidents; empty guns kill people every year. -Elmer Keith. 1961
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Re: AR-15 flash hider removal/
Brownell's website has some videos of different gun repairs, parts removal, and such. You might try them out.
S.S.G.

"A champion doesn’t become a champion in the ring. He is merely recognized in the ring.The ‘becoming’ happens during his daily routine." Joe Louis
NRA MEMBER

"A champion doesn’t become a champion in the ring. He is merely recognized in the ring.The ‘becoming’ happens during his daily routine." Joe Louis
NRA MEMBER
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- Senior Member
- Posts: 1507
- Joined: Thu Feb 01, 2007 10:11 pm
- Location: North Texas
Re: AR-15 flash hider removal/
S.S.G.

"A champion doesn’t become a champion in the ring. He is merely recognized in the ring.The ‘becoming’ happens during his daily routine." Joe Louis
NRA MEMBER

"A champion doesn’t become a champion in the ring. He is merely recognized in the ring.The ‘becoming’ happens during his daily routine." Joe Louis
NRA MEMBER
Re: AR-15 flash hider removal/
mdek wrote:I'm looking to replace the standard birdcage flash hider on my AR15 barrel so I can replace it with a YHM Phantom. I emailed Armalite and asked about the specific upper assembly I had and got this response:
"The EK0446B is a pre ban upper and the flash suppressor shouldn't be pinned and welded. If you see a faint light 3/8" circle at the 6 o'clock position of the FS then it's pinned and welded and we can remove it here for $60 labor. It shouldn't be though. The FS may be Loctited on which means you may have to add some heat before removing it. It has a right hand twist so use a padded wrench to remove it. Turn left to loosen."
It doesn't seem to be pinned and welded, but I can't get it to budge with a wrench! I heated it up with a hair dryer with no luck. I'm sure I can get it off with enough force, but I'm afraid of deforming the rest of the rifle with that much pressure and want it done properly.
Can someone suggest a decent gunsmith who can do this for reasonable $$$?
I just removed an A2 style flash hider from a CMMG M4--the process was as follows:
- 1. Make a block to hold barrel in vise:
- Cut a block of wood to fit vise
Drill 11/16" hole through block
Bandsaw block in half through hole
3. Secure Barrel in vice (with blocking)
4. Using a propane torch heat the flash hider at the barrel threads (Moderate Heat: do not heat to red or white hot)
5. After heating: Using a 3/4" wrench put slow pressure on the A2 flash hider (anti-clockwise)
6. Once loose let assembly cool, remove and replace flash hider. - Cut a block of wood to fit vise