Which one to choose. Two many choices, opinions please. Don't want to buy any special tools to install, so standard installation ones please.

Daniel Defense Omega. probably the best one that fits your criteria. it's 2 piece, you DON"T have to remove the delta ring, and it locks up very tight, plus its durable. I once used a screw driver to scrape off some dried mud on it, and it didn't even scratch the finish. they run around $230ish but if you check the EE you can get a good deal.

installation guide courtesy of Stickman


Next i would look at Troy, and Midwest Industries if you need something more budget friendly.