Mossberg JM Pro Drop-In Match Trigger — 4 lb (.223/5.56)

The Mossberg JM Pro Drop-In Adjustable Match Trigger is a factory-set drop-in trigger designed for AR-platform rifles. It ships with a 4 lb pull weight and delivers a crisp, creep-free break with user-adjustable overtravel. Constructed of steel with a black finish, the unit is intended for match-style trigger feel in AR-15 and AR-10 configurations.

Key Specifications

• The model is JM Pro.
• The trigger pull is 4 lb.
• The caliber/gauge is .223 REM/5.56 NATO.
• The finish is Black.
• The material is Steel.
• The style is Drop-In.
• Feature: Adjustable—user-adjustable overtravel.
• Compatibility: Fits AR-15 and AR-10 receivers with .154″ trigger and hammer pin holes.
• Can be disassembled: False.
• Listed shipping weight is 0.4.

This drop-in option provides a crisp, adjustable trigger suited to competition, match, and general-purpose AR builds where a clean, consistent break and controllable overtravel are priorities. Its straightforward installation and durable steel construction make it a practical choice for shooters seeking reliable match-style performance in their AR platforms.