MKII A2 - Evaluation
All inventory of A2 triggers has been sold out.  We do have a limited supply of A3 triggers in stock
A little backstory...

Milazzo-Krieger triggers were conceived in the mind of Charlie Milazzo in the late 1980s and were later put into production and presented as a premium resource to the Army Marksmanship unit as the M16 gained popularity as formidable service rifle.  They were s quickly regarded as the pinnacle of a very small group of budding trigger options available for the M16/AR-15 platform.

Unfortunately the production of these triggers experienced a relatively short life and became virtually unavailable sometime in the mid to late 1990s.  There are many speculations circulating about the disappearance of this product, but I have only received second hand info, therefore I cannot confirm any of them.  In any case, the once dormant trigger production has been eagerly resurrected by a friend of Charlie's.  Ron Albanese, a friend to Keystone Accuracy and a successful business owner of his own right in the world of manufacturing sold his business and soon found out that he just wasn't ready for the rocking chair.  As a result, he was able to convince his friend to let him take the once popular product and run with boy will you be glad he did.

What's in the box?
I received 2 of the current production triggers from The WI Trigger Co.  The first of two was the MK II-A1 which is an exact duplicate design of the original Milazzo-Krieger trigger.  The second was the MK II-A2 which is also a duplicate of the original with a few convenient modifications to the original design which will be illustrated below.  There is a third trigger in the immediate product lineup, the MK II A3, which is expected to by available by some time in the spring of 2016.  Once it's available, I will be illustrate it here with Ron's endorsement.

Inside the box are the trigger parts in plastic bags which are easily assembled and ready for use in just a few minutes while needing only the mechanical aptitude of a 10 year old.  The parts consist of a trigger unit assembly, trigger return spring, full strength hammer spring, 2 proprietary trigger & hammer pivot pins, and a set of 3 disconnector tensioning springs which are easily swapped out from the bottom of the trigger unit by removing a small set screw to expose the spring pocket.  No special tools are needed, just some small allen wrenches and a 10 year old.  There are also some nice stickers to proudly display that you have chosen such a fine product and a label magnet for the fridge.  Let's not forget the comprehensive instruction manual, transferable lifetime guarantee and color coded spring selection chart to help select your desired spring tension.
Second stage tension...
Once the trigger return spring and hammer spring are installed on the hammer and trigger parts, you'll need to select what second stage tension spring you would like to use.  This is the extent of assembly which is required in order to put you trigger into full use.  One of the very nice benefits that have been incorporated into the design of the trigger unit is that disconnector hinges on its own pivot pin which is permanently fastened to the trigger body from the factory rather than sharing its pivot point with the trigger body itself directly on the trigger unit cross pin.  This is a particularly nice feature when installing the trigger which eliminates the need for a slave pin in order to line up multiple parts in which several other designs share.
A1 vs. A2 models
Let's jump right in and compare the original from the modified model.  As stated earlier, the A1 retains the original design which has the full size trigger body tail which needs to be ground of milled by the end user in order to achieve the proper desired overtravel.  The A1 is especially a nice choice if you would like to modify it in a way that suits your specific need. The A2 comes with a preground tail in order to make it a drop in unit and provides minimal overtravel before the safety selector impedes its travel after the hammer has been released.  These differences are illustrated with yellow arrows.

Here is an additional top view of the trigger unit tail. Notice the difference in the rear section of the trigger unit, just behind the disconnector adjustment bridge.
This photo clearly illustrates the subtle modification on the geometry of the disconector.  This enhancement results in a very short reset after the hammer is released.  National Match course shooters refer to a particular term called "trophy trigger" in which the trigger is depressed fully upon shot execution and held to the rear as the cycling action of the firearm resets the hammer on the disconnectorOnce the trigger is slowly eased into the reset position, the hammer is reset after a very short physical travel resulting in a nice low movement feel while attempting to engage the target in rapid fire stages of the course.  This shortened reset is particularly desireable in order to aid in the shooter's continued natural point of aim and increased trigger control.  This modification is also very reminiscent of a modification that I learned many years ago and have performed often to match guns in order to enhance the reset of the well known M14/M1 trigger group.
Here's were I get to gloat a bit.  I can honestly say that I have extensive experience with virtually every trigger on the market that has been designed for the AR-15 platform, including this particular trigger in it's original design while on the All Guard Rifle Team.  Some products have been good, some, much better, and some not so good.  In the case of the MK II, I am extremely pleased in the fact that the folks at The Wisconsin Trigger Co. have absolutely knocked the ball out of the park on this one. 

This trigger upon assembly from someone considerably older than 10 years old (me) was adjusted, installed and put into use in just a few minutes.  The pins that it comes supplied with are custom ground to a specific diameter in order to fit very snugly in the receiver as well as to ensure that the trigger and hammer rotate on the pins rather than the pins ever rotating in the aluminum receiver.  It also ensures that the pins will never walk out of the holes or create an elongation of the holes due to an improper fit.

I chose to use the heaviest of the supplied disconnector springs in order to achieve slightly more than 4.5 lbs along with the set screw tensioning adjustment on the underside of the trigger unit.  Once I got the sear engagement properly adjusted with the top allen screw, the trigger break was absolutely like snapping the proverbial "glass rod".  I particularly like the fact that the first stage is significantly lighter than the second stage break.  The ratio of trigger weight is approximately 30% on the first stage with the remaining 70% on the second stage.  The first stage is silky smooth due to the proprietary diamond grinding process on the friction surfaces, while the second stage is basically unparalleled from any trigger that I have worked with to date.

I mentioned the the M14/M1 trigger group in the above section regarding the geometry of the disconnector, but I would also like to add that this trigger unit duplicates the undeniable good feel of that trigger group that so many hard core service rifle shooters have come to love over the years.  Don't know how they did it, but they did!

I can honestly say that after having this initial experience with this trigger,
I will be very anxious to put these trigger through the paces of the normal rigors of match shooting.  Hats off the folks at The Wisconsin Trigger Co. for resurrecting a truly remarkable product.

For more info, please visit The Wisconsin Trigger Company's website by clicking their company logo. ---- >>