Ah yeah, I’m still wanting to build a piston driven 556 platform so I think at that point I’d just get the BRN4 lower and slap on a TD 415 look alike upper or something on top of it and call it a day.
My thinking was that if I started with the genuine stripped 416 upper Brownells sells along with the BRN4 lower that I could at least still use the 416/MR556 compatable forearms and such for the initial build as my understanding is the TD 415 upper unfortunately isnt compatable with those. Something to do with the rail height
Is there anything proprietary about the stripped 416 upper that prevents me from using aftermarket internals which I can then later swap out with genuine Hk parts over time at my leisure?
Basically all I am wanting at the end of the day is a AR with the outward cosmetic receiver profile of the 416/MR556 without droping 2.5-3k on a MR556 for my first AR. I dont even necessarily need the Hk logos lasered on it, thats more just a neat thing to have should I ever have the spare cash to drop on a genuine 416 upper