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Posted: 5/6/2004 11:36:57 AM EST
Is it true that A3 recievers require a taller front sight base? Is this true of all A3 recievers from all manufacturers? If so, how do you know if the barrel you are buying has the taller front sight base? Thanks.

PS - This forum is great, I have learned more about AR-15's in the last month since I found this forum than I did in years before. Thanks everyone.
Link Posted: 5/6/2004 11:53:13 AM EST

Originally Posted By sodacan_slayer:
Is it true that A3 recievers require a taller front sight base?


No. Only the Colt M4 flattop receivers need the taller front sight bases.



If so, how do you know if the barrel you are buying has the taller front sight base? Thanks.


The barrel will be and M4 profile and from Colt; IIRC the FSB will have a '4' stamped on it.
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