Thank you Form I’m now a mk12 believer

[77TMK]

Reviving this as in the market for a precision ar. Any benefit in a mk12 mod 0 as opposed to a geissele super duty?

The super duties are not necessarily "precision" rifles, and most Mk12 Mod 0 builds I have used are with average barrels. If you want a turnkey AR, the most cost effective yet also significantly most precise setup will be a SOLGW Broadsword upper with their SPR barrel and L89 rail.

If you really like the PRI forend, grab a forend, thermal-fit receiver, and SOLGW SPR 16-18" barrel. I've tried WOA, Douglas, Krieger, Bartlein, and BA "mk12" type barrels, and none of them were in the same league as the SPR barrels SOLGW sources. The 5/8x24 muzzle is a genuine benefit, and the source of the SOLGW SPR barrels (BHW) is unique.


More precise but more expensive will the Ridgeline rifle.

 

[RockAndSage]

More precise but more expensive will the Ridgeline rifle.

Are the Ridgelines really more accurate than PRIs or the Brouwers?

 

[Avonac]

Are the Ridgelines really more accurate than PRIs or the Brouwers?

I’ve never shot a PRI or Brouwer but my Ridgeline is a hammer. My test target was a .4 and I have killed Prairie dogs past 700 yds. It’s the softest shooting precision AR I have shot

 

[bascott1]

Can’t find a ridgeline in stock anywhere

 

[omicron1792]

@Formidilosus and others.

I have this m4. It has factory colt 1:7” barrel at 16”. Free floated hand guard. Upgraded trigger and bcg. Adjustable stock.



What accuracy benefits would I see with a MK 12? Would it just be the longer heavier Douglas barrel?

 

[77TMK]

Can’t find a ridgeline in stock anywhere

They are very small batch rifles. Next best bet is the SOLGW SPR / Broadsword ones. You could alternatively just buy the barrel and handguard, and build it. Do you know how to properly assemble one, or someone nearby who does?

 

[Avonac]

@Formidilosus and others.

I have this m4. It has factory colt 1:7” barrel at 16”. Free floated hand guard. Upgraded trigger and bcg. Adjustable stock.

View attachment 1094636

What accuracy benefits would I see with a MK 12? Would it just be the longer heavier Douglas barrel?

You are most likely going to see better performance with the Douglas barrel. Another benefit is going to be how the receiver and handguard lock up. This is going to be a big benefit to mitigate poi shift from different positions.

 

[justinspicher]

Can’t find a ridgeline in stock anywhere

WTS Thread 'Ridgeline Defense LPR Upper'

Jan 20, 2026

Lightly used. Maybe 70rds through it. Complete upper as sold from Ridgeline. (suppressor, lower, scope, mount, etc not included) I had to slightly file the front and rear takedown pin tabs for it to fit my Larue lower. Still has an extremely tight fit and did not impede function with other lowers I tried it on.

$1500 shipped

• low2497
• Replies: 6
• Forum: Gun & Gun Parts Classifieds

Not a full rifle or new, but……

 

[Steel Rain]

Reviving this as in the market for a precision ar. Any benefit in a mk12 mod 0 as opposed to a geissele super duty?

I have the PRI MK12 Mod0 and two 16” Super Dutys. They are all extremely accurate but different. The SDs are my boys’ rifles. I will add a short barreled SD to the safe in the future. The SD triggers are amazing. That all being said, I’ll never part with my MK12.