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Posted: 2/15/2006 4:46:13 PM EDT
[#1]
It is my understanding that they you can put a Colt upper on a Bushy lower. I imagine the color will be a little off, but function over form as far as I'm concerned.
You should be able to just switch barrels, but that would be a huge pain if you could just put pop the pins and put the upper on and go. I'm sure one of the board experts will be along shortly. |
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Posted: 2/15/2006 4:52:45 PM EDT
[#2]
Some COLT's use a larger than normal pivot pin so there could be a difference in the front pivot pin size... Other than that, every thing else is compatible...
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Posted: 2/15/2006 4:54:12 PM EDT
[#3]
ETA: He said what I was gonna say...
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Posted: 2/15/2006 5:05:59 PM EDT
[#4]
+1
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Posted: 2/15/2006 6:33:21 PM EDT
[#5]
It will spontaneously combust.
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Posted: 2/15/2006 6:58:48 PM EDT
[#6]
I am running a Colt M4 upper assembly with a Bushy lower with no problems. Just make sure that the Colt upper has the mil. spec. hole sizes. Mine fit together nicely and the colors match good enough for me.
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Posted: 2/15/2006 7:02:29 PM EDT
[#7]
Think about it though... It could be the first Bushmaster that doesnt have a canted FSB... 
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Posted: 2/15/2006 7:55:33 PM EDT
[#8]
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Posted: 2/15/2006 9:46:43 PM EDT
[#9]
Just cause it's possible doesn't mean you should do it. That would be an injustice to the colt...kind of like putting AR parts/accessories on an AK
 
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Posted: 2/15/2006 9:48:10 PM EDT
[#10]
As stated above, check the hole size on the upper, but don't forget to file your pwk on the 14 /12 bbl
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Posted: 2/15/2006 9:50:59 PM EDT
[#11]
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Posted: 2/16/2006 10:24:38 AM EDT
[#12]
Chances are if you're uncles Colt has a 14.5" M4 type barrel it come with a black receiver that has a standard sized pivot pin hole. But there might still be a slight mis-match between the Colt and Bushmaster black. But it should fit right up with no problems.
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Posted: 2/16/2006 2:15:24 PM EDT
[#13]
Why not just leave the colt as a colt?
I wouldnt bother switching anything. |
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Posted: 2/16/2006 2:31:38 PM EDT
[#14]
Even if the lower and upper have different size holes, you can get adapter or offset pins and still be good to go.
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Posted: 2/16/2006 2:33:56 PM EDT
[#15]
Would Mil. Spec. be a large or small piviot pin? |
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Posted: 2/16/2006 2:47:00 PM EDT
[#16]
Especially if you have a Colt LE6920-Shooter! |
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Posted: 2/16/2006 3:17:57 PM EDT
[#17]
Mil-spec would be the smaller of the two... |
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Posted: 2/16/2006 5:30:53 PM EDT
[#18]
A 6920 like this?
http://img136.imageshack.us/img136/6276/692022ao.jpg |
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Posted: 2/17/2006 10:19:16 AM EDT
[#19]
The only thing I like about Colt's is the Chromed Carriers, barrels, and well that's it. I had a Colt with a Bushmaster barrel and it ran like a champ, I originally bought the Bushmaster upper for the Colt but they had two different front pin sizes so I pulled the barrel and put it on the Colt upper.
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