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11-10-2011, 02:08 PM
| #1 |
| Join Date: Sep 2011
Posts: 14
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what are the differences between the lowers?
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11-10-2011, 07:10 PM
| #2 |
| Senior Member Join Date: Oct 2010 Location: California
Posts: 1,706
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One difference is, the 556 uses AR-15 magazines where the 551 uses Swiss polymer mags...
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11-11-2011, 10:53 AM
| #3 | |
| Join Date: Sep 2011
Posts: 14
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So if you put a 551 lower on your 556 upper do then have a 551? CB Quote:
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Linear Mode
