07-19-2016, 03:30 PM
A5BLASTER Wrote:SBR lowers?
I maybe wrong but the lower should be just a standard mil spec lower even if its upper is built to SBR length, dont think their is a special kind of lower to be used with a SBR upper.
It is possible to purchase a lower that is already registered and engraved as an SBR. You just need a form 4 to transfer.

