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Just got PSA 20" FN upper. I've have new knights rail M5. The Delta ring can go far enough to clear the rail but the rail seems not wide enough to clear the "teeth" on the D-ring.
On line I've seen it is and it isn't a problem. Anyone deal with this? Trying not to scuff it up before it's even used.
On line I've seen it is and it isn't a problem. Anyone deal with this? Trying not to scuff it up before it's even used.