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Old 10-21-2012, 12:54 AM
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Default AR-15 Excavator 17inch Bayonet



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I just purchased this bayonet cause I thought it would be funny to have a 17" bayonet on a 16" barreled M4. I knew the bayonet wasn't going to be high quality, even with S&H it was under $20, I just wanted it for the chuckle factor. Only problem is when I got it, the muzzle ring wouldn't even fit over the flash hider! So now I have a real crappy knife that really isn't good for much. Although i thought it kind of reminded me of a Roman gladius, so it might have some usefulness after TSHTF. I might try to see what a machine shop would charge me to properly drill the hole to the correct dimensions, but I really don't want to spend much more on it.

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Old 10-21-2012, 01:10 AM
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If its that bad its probably cheap steel for the ring so buy a unibit and ream that sucker out until it fits.
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Old 10-21-2012, 06:58 PM
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No way to keep it centered that way, and could also get out of round. Will need a drill press to make sure the hole stays centered and perfectly round.

Also the blade on this thing is roughly as sharp as the spine of a butter knife.
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Old 10-21-2012, 09:34 PM
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Quote:
Originally Posted by billwilla View Post
No way to keep it centered that way, and could also get out of round. Will need a drill press to make sure the hole stays centered and perfectly round.

Also the blade on this thing is roughly as sharp as the spine of a butter knife.
I use a regular unibit all the time for doing that and haven't had a problem but these should work ok if you can find a step less drill with the right dimensions, they should be relatively self centering but less aggressive if you don't own a commercial drill plant.

http://www.harborfreight.com/3-piece...its-66463.html
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Old 10-21-2012, 09:37 PM
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Dremel time.
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Old 10-22-2012, 01:09 PM
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Flash hiders tend to differ. I had a bayonet I brought home from the marines, it barely fit the A1 hider on my AR-180, a bit tight, hot I doubt it would have come off.

Maybe take the bayonet to the gunshow and try some flash hiders, might find one it fits.
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Old 10-22-2012, 07:38 PM
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Quote:
Originally Posted by billwilla View Post
No way to keep it centered that way, and could also get out of round. Will need a drill press to make sure the hole stays centered and perfectly round.

Also the blade on this thing is roughly as sharp as the spine of a butter knife.

1- you dont know what a unibit it then. it's a stepped bit that centers itself. problem is they run about $30-50.
2- it's not that critical and you want some slop anyway
3- it's a $20 bayonet/gladius... for th elove of mike have some fun with it!!
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Old 10-22-2012, 11:31 PM
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1- you dont know what a unibit it then. it's a stepped bit that centers itself. problem is they run about $30-50.
2- it's not that critical and you want some slop anyway
3- it's a $20 bayonet/gladius... for th elove of mike have some fun with it!!
I do know what a unibit is, but apparently you don't know what quality workmanship is. Using a unibit to the point where the flashider works will leave a taper and make one side of the metal around the whole very thin, or if you alternate sides there will be a huge over bore on the outside of either side and a narrow thin piece of metal in the middle, not to mention it can still work its way off center if you don't have a proper press to do it with, but then again, i doubt you would know anything about proper machining. If you want to buy one and make it look like crap, you are free to do so.
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Old 10-22-2012, 11:35 PM
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As said above, dremel, time, and a bit of craftsmanship.
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Old 10-23-2012, 02:42 AM
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LOL... dude your losing perspective. It's a POS $20 knife you'll never use. The first time you put it on the rifle you'll do more damage to the finish than the entire project is worth.


quality workmanship... roflmao
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Old 10-23-2012, 09:25 PM
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Have you ever tried a normal bayonet on an AR? There is always plenty of slop in there, hell my M9 fits very well on 1 of my AR's, and really tight on others.

My point is that it does not matter at all if the hole is perfectly centered.
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Old 05-23-2019, 06:05 AM
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looks like it would be a good pig sticker
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Old 07-16-2019, 08:29 AM
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have a cheap bayonet I got for like $15 online for the same chuckle factor.

the instructions say to unscrew the flash suppressor to put it on. honestly didn't know they were supposed to clear, none of my AR's flash suppressor are that small. since it's just for looks/messing around anyway, what's the big deal to unscrew it? you're not going to be slapping the thing on a hot barrel in the middle of a battle anyway.
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Old 07-30-2019, 10:49 AM
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Ok, why does a thread about a cheap bayonet attract so many spammers? I’ve deleted 8 out of this thread in the last month.
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Old 07-30-2019, 11:05 AM
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Quote:
Originally Posted by billwilla View Post
I do know what a unibit is, but apparently you don't know what quality workmanship is. Using a unibit to the point where the flashider works will leave a taper and make one side of the metal around the whole very thin, or if you alternate sides there will be a huge over bore on the outside of either side and a narrow thin piece of metal in the middle, not to mention it can still work its way off center if you don't have a proper press to do it with, but then again, i doubt you would know anything about proper machining. If you want to buy one and make it look like crap, you are free to do so.
Itís a $20 knife you admittedly bought for fun. Unbunch yer panties and ream the sucker out a bit, if yer man enough to get er done.
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Old 07-30-2019, 01:19 PM
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I would just duct tape it on there.

Then maybe a few pop rivets and some bondo.
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