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Will a 9” MFR fit on a DD mid Length with an A2 front sight base? The rail is designed with a lip at the front bottom - fear FSB interference issues. — 2 Answers

by Jack R, from IL, United States Asked on April 5, 2022

Name Daniel Defense MFR XS Rail Systems (4.9)
As Low As $315.00 Save Up to $26.00
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Answered by Ethan, Gear Expert, from IL, United States, on April 28, 2022

The Daniel Defense MFR XS Rail Systems are designed to be used with low profile gas blocks and use a barrel nut opposed to delta ring and handguard cap. I would just recommend replacing your fixed front sight for a low profile gas block in order to fit this handguard as it was intended.

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Answered by Jack R, member, from IL, United States, on April 28, 2022

I asked if would if anyone has put the 9” rail on a DD M4 mid length if there were any fitment issues because to the lip on the bottom of the rail. That’s the WHOLE reason for making a 9” rail is to put it on a mid length rifle with a FSB. So basically again a 9” rail is normally a perfect fit for a mid length. Some prefer the FSB it bullet proof. Thanks for nothing.

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