AR-15 Mk 12 SPR builds

[Swamp Rat]

Anybody done one?

I don't know why, but I've had a bee in my ass to build one for a long time. I have all the stuff I need for the lower, and I am not really leaning towards the "classic" Mark 12 config. My lower will likely be built on a basic stripped receiver, BCM Gunfighter grip, full (rifle) A2 stock and buffer system, Geissele Hi Speed NM trigger, and good internals. The upper is where I'm going back and forth.

Option A: Buy an "off the shelf" Bravo Company assembled upper. I'm a big fan of BCM AR uppers, and their Mk 12 Mod-4X-Bravo looks interesting to me.

https://www.bravocompanyusa.com/BCM-...2-4x-kmr15.htm

Option B: Build from scratch an upper on a White Oak SPR barrel with a good BCG.
https://www.whiteoakarmament.com/sho...st-fluted.html

I am thinking the WOA barrel might outshoot the BCM, but I like the turn-key option.

Either way, it would be topped with a good variable military grade variable scope suitable to the build (may actually go "classic" with a Leupold Mk 4 2.5-8x36mm) and run my SilencerCo Saker can on it. Want a fun, accurate gun set up for better precision than I might expect from my BCM "Recce" home build.

Thoughts?