This set up has only 200 rounds of Mk262 ammo ran through it. All of it was slow fire from a bench at my local shooting range. Five shot groups hovered around an inch at 100 with the ammo I shot through it. I always cleaned it with a bore guide made for an AR15 and a Tipton carbon fiber .22 cleaning rod. This would be perfect for someone wanting to build a Mk12 clone. I am located in western WA near Puyallup. Let’s get down to the details:
-Badger Ordnance Mk12 gas block: badgerordnance.com/products/manifold-gas-mk-12-spr-34-bbls-416-stainless-steel-black-oxide-issue-item-2
-Seekins Precision Melonited gas tube: seekinsprecision.com/melonited-gas-tube.html
-Ops Inc. Muzzle Brake/Suppressor Mount: bravocompanyusa.com/Ops-Inc-12th-Model-Brake-Collar-p/opsinc%2012%20brake.htm
-Centurion Arms Mk12 18" 1/7 twist stainless barrel: centurionarms.com/product-p/mk12-pn-colon--mk12b.htm
From the manufacturer website: “These barrels come from the same machines and the same people who make the military MK12 barrels for the Special Operations community. These barrels are the result of tens of thousands of dollars in development done by the U.S. government to give our Special Operations guys the best weapon system they can have. We have spoken with many operators who have used these barrels and carried them in combat and have found unanimous satisfaction with their reliability and accuracy. No break-in is required by the end user.”
There is nothing wrong with these parts other than a little wear on the brake from shooting and installation. The finish seem kind of thin on the brake and collar but that’s just how they are made. I am only selling because I want to get something a little bit lighter for plinking. I thought I wanted a precision AR rifle but think I’ll just stick to bolt guns for that type of shooting. I’ll take $600 shipped.
