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1/20/2017 1:31:50 AM EDT
I'm looking for a rail system with an INNER diameter greater than 1.5" so I can tuck my suppressor inside of it on my SBR. I already know about the Seekins MCSRv2, but any others would be greatly appreciated. Links are a bonus. TIA
1/20/2017 6:12:58 AM EDT
[#1]
Spikes' BAR,  the original fatty.
Head Down products also have large internal diameters, ( although I believe these are Seekins offshoots).
1/20/2017 6:21:52 PM EDT
[#2]
Aero Precision Enhanced handguards and the Seekins rails are interchangable, I believe. Both use the BAR barrel nut system to attach, or you can use the Aero M4E1upper. I am building two integrally suppressed uppers using the M4E1 upper with their Gen 2 enhanced handguards. ID of the rails is 1.8", meaning my 1.5" suppressors fit pefectly underneath.

Midwest Industries also sports the SP series of rails with an ID of 1.75", tauted as their suppressor ready line of rails.
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