I've been toying around with an AR pistol build. It seems that a common desire with AR Pistol people is for a vertical forgrip which makes it an AOW.
I saw a while back that some company was making receivers with a texture (like a meat mallet imprint) on the front of the magwell. What if someone (CMMG ;)) made a receiver where the front of the mag well was more like a grip.
Figured I'd post this here since Jeff or John would be more likely to see it than in the AR pistol thread maybe.