Milazzo-Krieger M-K IIA2 Two Stage Match Trigger (AR15) by Wisconsin Trigger Company

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Milazzo-Krieger Model M-K IIA2 Tactical Trigger by Wisconsin Trigger Company

Introducing the new M-K IIA2 GEN2 Tactical Trigger, designed with Tactical shooting in mind.

Milazzo-Krieger Two Stage Tactical Match Trigger System For AR15 / M16 Family of firearms.

The M-K IIA2 is designed to combine the best of two worlds: National Match and modern tactical competition. The result is a trigger that is at home at the 600 yard line of Camp Perry as well as in a high speed, 3 gun match. The M-K

IIA2 uses the M-K II design that set record after record in National Match competitions with its crisp, clean and predictable release. Then, a new short reset disconnector is installed to allow for faster follow up shots. The M-K IIA2 is truly a tactical-match trigger. Installation is simplified with a factory pre-cut trigger housing tail, saving time and eliminating the need to set overtravel when installing your new trigger. Fits receivers that use the standard GI size

0.155 receiver pins.

All M-K II models include:

1 Hammer

1 Hammer Spring

1 Trigger Spring

1 Trigger Housing assembled with a blue 4.5 Lb. Medium Disconnector Spring.

1 Red 3.5 Lb Light Disconnector Spring

1 White 5.0 lb. Heavy Disconnector Spring

Actual pull weight will vary slightly due to receiver tolerances

(Disconnector springs are easily changed to the users preference.)

2 Hammer / Trigger Receiver Pins

1 Sample tube of Slip 2000 lubricant


Made for milspec (small pin) USGI Lower Receivers. Will NOT fit Colt (large pin) lower receivers.

Actual pull weight will vary slightly due to receiver tolerances.


Installation Videos

This first video is an overview and some history of the Milazzo-Krieger 2-Stage Trigger System. It includes information on setting the disconnector for 2nd stage engagement, setting the overtravel, and checking safety engagement. The video also addresses proper care and maintenance and the proper tools that are needed for installation.

The Wisconsin Trigger Company is now the home for the Milazzo-Krieger M-K II Two Stage Match Trigger System. This is the original US patented two stage trigger for the AR15 and M16 family of rifles and pistols

History of the Milazzo-Krieger M-K II

The M-K II was only in production for a short time with production numbering of approximately 3000 units split between the large pin Colt style models and small pin standard models. The M-K II was introduced in the early 1990's and was quickly adopted by the US Army Marksmanship Unit (USAMU). The M-K II was used with great results at Camp Perry and in inter services matches setting numerous world records. By 1994 it was the only trigger used by the USAMU in the competition M16 rifles. Some of the original M-K II systems are still competing and winning in civilian hands after all this time. Production was completely halted shortly after its introduction in the mid 1990's.

Reintroduction of the M-K II

On the 25th anniversary of the M-K II system, The Wisconsin Trigger Company is honored to offer this world class match trigger for the AR15 / M16 rifle and pistol family of firearms once again.

Production will be with the original fixtures and test jigs Charlie Milazzo hand crafted in the late 1980's. The Wisconsin Trigger Company has made a commitment to hold the same tight quality control and the extreme tolerances that made the M-K II the finest two stage match trigger in the world. All of the major components are cast within the same molds at the same foundry as the first units produced.

Lifetime Guarantee

We are backing up our commitment with a transferable lifetime guarantee on all the trigger systems we produce. The original M-K II was so well designed and manufactured with such high standards, we are pleased to offer this same guarantee to any original M-K II trigger system produced prior to us taking over production in 2015. We will be posting more of the rich history of the Milazzo-Krieger M-K II Match trigger System as it is uncovered. If you or some one you know was one of the USAMU or one of the civilian competitors that used the M-K II to set a record, please email The Wisconsin Trigger Company and let us know if your record is still standing.

Mission Statement of The Wisconsin Trigger Company

Our Wisconsin business manufactures the Original Milazzo-Krieger M-K II Match Trigger Systems. We seek to produce the finest triggers available for the AR15 and M16 family of firearms. We are a family owned and operated business, with customer service that might be expected from the corner grocer. Our customers include AR15 enthusiasts and target shooters, or anyone who demands superior quality triggers personalized to their own shooting styles.

***This product contains chemicals/materials known to the State of California to cause cancer and other reproductive harm. To learn more, visit***

1 Review

Write a Review
  • 5
    great trigger

    Posted by JMP on Apr 18th 2019

    Fast seervice and quick delivery for a great trigger.