I have a Gen 1 MCX upper and conversion on my SBR lower. Now I'm looking to pick up a rattler pistol and Form 1 that. Does anyone know if my gen 1 MCX upper will work on the newer rattler lower? Thanks in advance for any help.
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Member
I have a Gen 1 MCX upper and conversion on my SBR lower. Now I'm looking to pick up a rattler pistol and Form 1 that. Does anyone know if my gen 1 MCX upper will work on the newer rattler lower? Thanks in advance for any help.
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