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1/25/2018 7:38:29 AM
Posted: 1/9/2006 2:09:30 PM EST
Is anyone using this sight on a non-bushmaster railed gas block? I'd like to use this sight on a RRA CAR A4 with a RRA factory weaver gas block but do not know the height of the RRA gas block as I have not yet received the upper. Bushmaster tells me that the top of the rail must be .550" +/- no more than .020" above a HEAVY barrel. Can someone tell me the height of a RRA weaver rail gas block on one of their Wilson 1/8 SS barrels? TIA!!!!

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