Hey ATRS, does the Daniel Defense RIS II system work on these uppers?
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Last edited by jiffx2781; 05-17-2020 at 11:16 PM.
Curious if geisselle rails will fit without any modification?
Couple questions.
Where along in production are these?
Is there a preorder for the upper&lower set?
ETA?
|CCFR|
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Last edited by jiffx2781; 05-17-2020 at 11:17 PM.