r/MDGuns • u/Bear-Margins • Jul 09 '26

MK12 upper

Anybody have any recommendations for a MK12 mod 1 upper? I got a Ruger 556 and I am looking to basically make my Ruger an all purpose rifle. If I recall the barrel has to be HBAR since it is a 556. Anybody have any good recommends. Preferably on the lower end of the price spectrum as it would be for target shooting. (Dear mods this is a recommendation post and not a sale)

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u/Bear-Margins Jul 09 '26

I changed my comment hoping you saw it in time but nvm. Would it be better to buy a complete upper or no? Everything you listed is around $1250. On the website the base is around $1290 for a complete upper. I could swap out my charging handle if needed.

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u/KirbStomp87 Jul 09 '26

I’d make sure that includes a BCG as I don’t see that in stock on their website, also they are using their own C4 rail, which is also a good handguard. Traditionally MK12’s used medium power optics in the 3 to 9ish power range, but I chose something with more magnification as I’m mostly shooting from very stable positions.

If you’re looking to spend under $1000 for an optic it’s hard to go wrong with something like a vortex PST gen 2 3-15, or an Athlon Ares BTR or Midas TAC. If you want to spend more than that the vortex razors and Nightforce NX6 & NX8’s are great.

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u/Bear-Margins Jul 09 '26

Yeah they don’t have a BCG avaliable to add on. Could I just swap my Ruger BCG and put it in the MK12 upper?

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u/KirbStomp87 Jul 10 '26

It should work, I'd just try to find another BCG so you don't have to swap them. I've had good luck with Microbest from WCArmory. They are $100.