I need a AR-15 complete lower, to go with my MK2 upper. I'm wanting to make sure I got the right one. BCM lowers are out everywhere. I found one here, there's 1 picture with bad resolution. Here is the description "BCM Lower Group w/MK2RMS-M1T0 & BCMGUNFIGHTER Stock Mod-0- Utilizes the BCM MK2 Receiver Extension, MK2 buffer, rifle M16 action spring. The MK2 receiver extension is approximately 3/4'' longer than the standard 6-position receiver extension". Is it the BCM MK2 Lower?

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James G. · Answer

Hi Jacob and welcome. This is the correct UPC/ BCM MK2 lower you seek. It will mate up perfectly to your upper. Cheers, stay safe and enjoy!

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