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Page AR-15 » AR Discussions
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Archived [ARCHIVED THREAD] - I have my answer
Posted: 9/29/2005 4:58:32 PM EDT
Have not seen any info on this, I am trying to determine what my 6721 has.

Thanks,

5Shot

Link Posted: 9/29/2005 5:06:43 PM EDT
[#1]
quickest way to check without going into what year was it made/serial number, or buy a caliper/micrometer, etc...just take a drill bit and use plain end to probe to see what fits in the take down hole
good luck

Link Posted: 9/29/2005 5:33:58 PM EDT
[#2]
I can measure the pin - but that still won't tell me if it is large or mil-spec.  I need a diam of one or the other to compare mine to.

5Shot

Link Posted: 9/29/2005 5:50:07 PM EDT
[#3]
If memory serves me right

large hole colt = .315"

small hole (M16) = .250"


Link Posted: 9/29/2005 6:04:47 PM EDT
[#4]
Quoted:
If memory serves me right

large hole colt = .315"

small hole (M16) = .250"



Thanks!!

Archived [ARCHIVED THREAD] - I have my answer
Page AR-15 » AR Discussions
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