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AR15.COM
8/26/2015 10:21:07 PM EDT
I was curious about the hybrid rail offered in the link.  Is it modular at all, or are the cuts in the rail strictly for reducing weight?

Link

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ETA

I was also curious as to what type of barrel steel was used.  It says CMV, but I just wanted clarification if that meant 4150 or 4140 since I haven't been able to find a definitive answer on that.
8/28/2015 6:09:51 AM EDT
[#1]
Question was answered in an email.

The linked rail is not modular, and the cuts made are for weight reduction. It'd be nice if a future version was M Lok comparable since the cuts are already there.

I found a previous thread where PSA stated that:
-CM is 4140
-CMV is 4150