JP RIFLES | JP MK IV Trigger Package - One Piece Curved Trigger
One-Piece Curved Trigger / Color: Black
JP's MK IV Trigger combines the latest generation of JP trigger components developed and perfected over the last thirty years. The result is a refined, fully customizable trigger setup with mission-specific versatility. With a quick and easy installation, you'll achieve all the benefits of a trigger module with none of the drawbacks.
This component trigger package provides a customizable trigger setup in only 15-20 minutes. In addition to the traditional one-piece design, this package is also available with our interchangeable shoe design to allow customization and easy swapping of trigger down the road.
Package includes MK IV Trigger with adjustment screws, adjustable EZ Disconnector, JP Speed Hammer, JP Anti-Walk Pins, trigger spring, two hammer springs, wrenches and thread locker.
This trigger kit is usable with small-frame (AR-15), large-frame (AR-10) and PCC applications (JP-5).
Features:
▪ Fully customizable trigger system for any application
▪ Compatible with and Mil-spec-pattern platform
▪ Multiple adjustments ensure a perfect fit in even out-of-spec receivers
▪ Quick and easy installation with no gunsmithing required
▪ Reduced lock time
▪ Precise component relationship with no slop
▪ Updated trigger design that virtually eliminates dirt-related stoppages along with easier install/removal
▪ Upgraded component materials to reduce wear and breakage
Safety Selector Compatibility:
For the best, quickest and easiest install, add on the adjustable JP Dual-Throw/Sure-Set Safety Selector with you choice of levers. Not only does it ensure perfect safety function regardless of receiver hole placement, it offers your choice of lever profiles and colors and reversibility for either a standard 90° or short-throw setup. The safety includes your choice of two levers.
You can also pair the MK IV Trigger with the third-party safety of your choice. While we can't guarantee compatibility with every possible selector on the market, all those we tested functioned without issue.
Spring Selection Guide:
▪ Competition/Recreation
The yellow/yellow combination may be used for competition and various recreational applications with hand loads or domestic-manufactured, non-military ammunition. It will result in a release weight in the 3.0-3.5 lb. range on most receivers.
▪ Enhanced Ignition Reliability
The yellow trigger spring combined with the red hammer spring will yield a release weight of 3.5-4.0 lbs. on most receivers and offers increased reliability for (5.56 NATO) or foreign-manufactured ammo with low sensitivity primers. The yellow-red springs must be used for any large-frame AR installation to ensure 100% ignition reliability. This is also the minimum acceptable combination for tactical duty (LE) installations and should be used only with domestic-manufactured ammo in this application.
▪ Duty/Defense
The tactical spring set includes a full powers (grey) hammer spring (purchased separately) and yellow trigger spring. It may be required for agencies that mandate a trigger release weight of over 4 lbs. This set up also insures 100% ignition reliability on both AR-15 and AR-10 type rifles.
▪ CMP
To meet NRA Service Rifle Competition rules of a 4.5 lb. release weight, the CMP spring set (purchased separately) includes the full-power hammer spring and a custom trigger return spring, which will allow you to tune to a release weight just over 4.5 pounds to lift the NRA weights.
