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Posted: 12/27/2001 7:25:53 AM EDT
What should I watch out for doing this? Besides the offset pin.Large/small hole question??

Link Posted: 12/27/2001 7:39:17 AM EDT
I think that's about it. I'm about to take the plunge myself.
Link Posted: 12/27/2001 7:56:45 AM EDT
If your putting on an older Bushmaster upper watch out for the purple ones.
Link Posted: 12/27/2001 3:28:28 PM EDT
I have a Bushy A1 24" heavy upper on my Colt SP1 lower. Works great! Since the offset pin resembles a cam, rotating the pin will move the upper in relation to the lower. Just rotate the offset pin until you get the best fit between the upper and lower. That's about it.
Link Posted: 12/28/2001 6:36:48 AM EDT
[Last Edit: 12/28/2001 6:41:00 AM EDT by Benjamin0001]
As soon as I can find my lowers. Which I know where two are, I am thinking about building two M4"gery"_SOPMOD's on 20" and the other 16".
I am hopping to do this well enough through purchase, lapping , trigger work, etc. TO have them both at least 3/4 MOA @ 100 yards??
Link Posted: 12/28/2001 6:39:01 AM EDT
Which will be pushing it I think with the 16" barrel. But we shall see. If I can get it no more then say 1.25 " groups @ 100 yards I will probably still be happy.


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