Quote History Originally Posted By ciscorbin:
Does anyone know if the RDB will work with the Glock Mag lower?
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Which Glock lower you talking about???
The RDB was initially introduced as the 'Guard' and the only way they supported running it was with their Glock lower....just as I posted in the link above.
Later when the MEAN Arms Endomags came out, they worked out a deal with them to sell them for the RDB.
The image below is in that link above. That is their Glock lower. What is different about it vs other Glock 'AR' lowers is that it positions the mag lower since it uses a similar bolt and carrier geometry.
The RDB actually brings the height to be consistent with a 5.56 configuration.
All that said, there are several threads where people have gotten blowback Glock lowers to work with the RDB. Some required mods and some didn't.
A friend of mine is running a RDB with a cheap PSA lower by just removing the fixed ejector in the lower and made no mods...but he doesn't have LRBHO.