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245 Posts
Just picked up this used SAI and the receiver bridge looks funny to me. My Norinco and LRB have receiver bridges that are pretty rectangular. This SAI has what looks like an angle ground into the back side. Any one know if this is normal? If someone has a sec to compare it to thier m1a it would be greatly appreciated as I have an opprtunity to get my $ back if it's been bubba'd.
SAI:
Norinco (LRB looks the same):
SAI:


Norinco (LRB looks the same):

