How Effective is the MK12?

[mig1nc]

Just wondering if anyone here ever listens to Tactical Rifleman, Karl Erickson on YT. Two nights ago he had Steve Holland on. He had an upper which was a cut down 20" HBAR to 16 with what he said he the fiberglass FF tube from an AR10T. It was cut down to just behind the front sight. He doesn't have much good to say about PRI! He talked about how they'd cut an inch off the barrel at a time and test. That another group was doing the RECCE at the same time. He said he wanted a Mk262 equivalent as a result of watching the AMU and they were running 77's at 600. He's been on there before and gave the whole history of the 6.8 SPC and he's a riot to boot.

I like his channel, but don't catch every video so I had to look it up. Good God, 3hrs video?


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[Hammer_Man]

I like his channel, but don't catch every video so I had to look it up. Good God, 3hrs video?


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I like his channel a lot due to the no frills, no BS nature of what he posts. His “Tactical Tuesday” live streams can be lengthy, so I usually treat them like an audio book, where I’ll listen to them 10-15 minutes at a time. It was cool to actually see and hear from Steve Holland, and to see his prototype Mod-H upper.

[mack7.62]

I like the 9-Hole Reviews, here's one on the MK12 they did a couple of months ago.

[mack7.62]

I like the 9-Hole Reviews, here's one on the MK12 they did a couple of months ago.

[Alex V]

Just ordered the PRI Mk12 Mod0 upper.

Been sitting on the Leopold Mk4 2.5-8 for years. Got the ARMS rings and a Colt "M4 Carbine" marked lower.

Can't wait to have my clone built.

[danieljmaunder]

Mk 12 was the first AR I ever built, and my dumbass sold it. My most regrettable sale to this day as it was an absolute tack driver punching 1 hole groups at 100 with 77 grain black hills. I shot it out to 600 yards a few times and regularly range c zone steel at 5-600 yards. Its a very effective platform, although with the handguards and accessories if going clone correct, a little outdated. If you took a mk12 barrel, put a modern handguard and some of the newer optic choices on the market its a very viable platform if you want the smoothness of a rifle gas system. Personally I run 14.5's mostly just for practicality as I have some bolt guns for longer range work. And most stuff I might need an AR for would be within 300 yards. With all that said, I absolutely love the mk 12. Its a very accurate, reliable, soft shooting, and amazing platform.

[mack7.62]

Just ordered the PRI Mk12 Mod0 upper.

Been sitting on the Leopold Mk4 2.5-8 for years. Got the ARMS rings and a Colt "M4 Carbine" marked lower.

Can't wait to have my clone built.

Got a Lupey MK4 3-9 I took off mine when I upgraded to more modern glass.