Would it be for me to uninstall and reinstall my barrel, delta ring and gas tube onto a new upper? Daniel Defense uppers are only $150 at SOG (http://www.sogarmory.com/ProductCust...59&ParentId=59) and I figured this would be the most cost effective way for me to get a flattop upper instead of buying a whole new assembly for $600+, since I already have the handguards, barrel, etc.

I've never actually removed and disassemble more than my BCG, handguards, buffer since thats all they taught me in boot . So I'm just curious if this would be a big undertaking or a simple swap.