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APEX Action Enhancement Kit - Ruger MK IV 22/45

(1 customer review)


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APEX Action Enhancement Kit – Ruger MK IV 22/45

The Apex Action Enhancement Kit for the Ruger Mk IV 22/45 replaces the factory trigger and hammer and is designed to reduce the trigger pull weight by approximately 30% to around 4.5 lbs. The kit delivers a crisp trigger break while reducing the trigger’s over-travel by 50% and overall trigger travel 15%. Also included in the kit is a safety plate to maintain factory safety values, even when drop-tested from 6 feet. The red anodized magazine safety delete, which when installed, allows the pistol to fire without the magazine inserted. This is recommended for competition use only.

NOTE: Please be sure your Mk IV has been retrofitted with the updated safety mechanism or is a newly manufactured model with a serial number beginning with the number “5.” Click here for Ruger’s official Mk IV Recall information.Expected Results
– Reduces trigger pull to approx. 4.5 lbs
– Reduces trigger over-travel approx. 50%
– Reduces 
overall travel approx. 15%
– Delivers crisp trigger break
– Maintains factory safety values

Applicable To What Gun(s)
Ruger Mk IV 22/45 models (with safety upgrade or post recall models).
NOT for use in the standard Mk IV pistols (see #117-114).
NOT recommended for use with other aftermarket fire control components.

In The Package
1 ea. Apex Action Enhancement Trigger for Mk IV 22/45
1 ea. Apex Action Enhancement Hammer
1 ea. Apex Safety Plate
1 ea. Apex Magazine Safety Delete

For detailed instructions:,

Additional information



1 review for APEX Action Enhancement Kit – Ruger MK IV 22/45

  1. John Widdis (verified owner)

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