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Archived [ARCHIVED THREAD] - Help needed quick
Posted: 9/19/2002 8:55:16 PM EDT
Can I put a bushmaster upper on a Colt lower, are they interchangeable or is there a diff, pins, etc..

Thanks

Link Posted: 9/19/2002 9:12:25 PM EDT
[#1]
It is no problem if the Colt lower has a small hole pivot pin.  If the Colt lower has a large hole pivot pin, you will need an offset pin which costs about $6.
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