Precision Reflex - Product Reviews
18" Mark 12 Mod 0 Black SPR Upper in 5.56 Cal. 1-8 Twist - Product Review
This Mark 12 Mod 0 Black 5.56 caliber 18" upper is a complete upper with all the extras and ready to shoot. Upper is a M.O.A accuracy 1-8 Twist barrel
Item: 07-55618-SPR-RDB  Back Ordered
Manufacturer: PRI
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Average Rating
 5 stars
(based on 5 reviews)
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All Reviews For This Product
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Reviewed By: manuel r.
Review Date: 3/20/2015
There are a few companies aside from PRI that specialize in making mk12 clones and price them in the 18-2200 price range for just an upper using the EXACT same parts that PRI uses. This upper is solidly built, beautiful to look at and amazingly accurate. With mk262 LR (77gr SMK) I am getting average groups of .5 MOA with the best group being .43. I'm sure with the perfect hand load it'll perform better. I've had a few mk12 mod 0 builds in the past and this one is byfar the best performing. My only gripe with the upper is that it comes with the PRI (troy style) Rear BUIS instead of the A.R.M.S. #40L rear sight. Not a deal breaker but if you want to make it as spec as possible just ad a #40L rear sight to the list. If you want a beautiful MK12 upper that's priced right and shoots SUB MOA, this is the upper for you. Don't pay someone else hundreds of dollars more to build you the same upper using the exact same parts, go through PRI and they'll make it worth your while!

Reviewed By: darrel m.
Review Date: 7/30/2014
Let me start by saying WOW ! High quality upper. Very accurate under MOA with 77g BH ammo. Fast shipping awesome deal. PRI also through in a nice MK12 T-shirt. You will not be disappointed with this upper. Thank you PRI Darrel

Reviewed By: jamie s.
Review Date: 5/3/2014
Received my Mark 12 Mod 0 upper, very well packed for shipping , Including a factory test target with 4 tight holes in it. Looking at my upper I see it is very well assembled, lubed, and complete. It is every thing i expected from PRI and more. So if your thinking about getting one of these or any other product from PRI, stop thinking and start getting. Thanks PRI , very happy with your work,

Reviewed By: Drew F.
Review Date: 3/13/2014
Bought this upper a few months back and threw it on an LMT lower with a full A2 stock. Finally took it out for zero yesterday and WOW! I knew the rifle would be accurate but I didn't realize how much. Got so bored of putting holes in paper so I threw up 10 2" clays at 100 yds. Went 10 for 10 with very little effort. If you want the closest to a Mk 12 Mod 0, this is the upper to buy.

Reviewed By: chris n.
Review Date: 12/26/2013
WOW!!! The real deal. I could not be happier with this upper. I had High Caliber Sales build a mod 1 - this shoots slightly better - or maybe I just had a better day..... If you are thinking about a mod 0 do not hesitate PRI is Class A all the way. As far as a review - .65 MOA @ 100y says it all. 0 malfunctions or issues of any kind (Sun Devil lower with upper/lower tension screw)
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