I'm finishing my 20" AR build and realised that I've got enough parts to build another rifle, except for a stripped upper receiver. I'd be assembling the gun just to get rid of it though, maybe My choices are to buy an A3 flat top receiver or an A2 Carry Handle receiver... price is irrelevant. Which is more marketable for under $700 1. Standard A2 carry handle carbine, full length buttock, A2 carbine handguard 2. Flat top carbine with A2 front sight, a2 handguard & full size a2 buttock I made it a poll. Let me know what you think.