Expo Arms M4 RAS Quad Rail Handguard - Carbine Length Review

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I like it.
Expo partners with good people, like FCD and CMT, to make good things people want. The only reason I haven’t purchased an Expo/CMT M-Lok handguard is that they seem to use 6061 barrel nuts instead of 7075.

Milspec barrel nuts are 4140 steel...so are BCM, SOLGW, Midwest Ind. etc.