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Posted: 2/25/2007 6:03:25 AM EDT
This may sound stupid but I was wondering is there any difference in the lower for an M4 and a standard 20" rifle.
Link Posted: 2/25/2007 7:07:29 AM EDT
There in no difference between the lower receivers of both rifles(except the markings).
Link Posted: 2/25/2007 8:20:36 AM EDT

Originally Posted By Mudgoober:
This may sound stupid but I was wondering is there any difference in the lower for an M4 and a standard 20" rifle.


M4 style usually has a 4-pos or six-pos buttstock, basically a collapsible buttstock.

The 20" usually has the A2 style fixed buttstock.

As far as the receiver, they are both the same.
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