Timney 610 Mossberg LBA Long Action Trigger, Adjustable 1.5-4 lb w/Safety

Description

The Mossberg 100 ATR and LBA long action rifles are solid, dependable guns, but the factory trigger is usually the first thing owners want to change. The Timney 610 fixes that in a hurry. It's a self-contained, 100% drop-in unit that replaces the whole trigger group, so there's no fiddling with springs or trying to polish a stock trigger into something it isn't. Push out the pins, drop it in, and you're working with a clean break instead of that spongy factory pull.

What the Timney 610 Brings to Your Mossberg LBA

This one is built around a lightweight 6061-T6 CNC machined aluminum housing with a wire EDM cut, heat-treated steel trigger and sear. The sear gets a Teflon nickel coating for smooth, long-lasting engagement, and the whole thing is adjustable for sear engagement, over-travel, and pull weight from 1.5 to 4 pounds. Timney sets these at their standard 3-pound pull out of the box, and you can dial it lighter or heavier to match how you shoot. A two-position, trigger-blocking side safety is part of the package, so you keep a real safety after the swap.

Fit Notes Before You Order the 610

Mossberg ran both long and short action triggers, and they aren't interchangeable, so it pays to double check. The 610 is the long action version, made for the 100 ATR long action, ATR Youth, Night Train, and similar long action variants. If you're unsure which one you've got, measure from the center of the trigger pin to the center of the mounting screw. Around .512 means you need this 610; roughly .390 means you'd want the short action 610S instead. Taking that measurement first saves you a return.

Owners consistently mention how much of a difference it makes on the range, with tighter groups and an easier, more predictable break for hunting and target work alike. It's backed by Timney's lifetime warranty, which is a nice thing to have on a part you'll likely never touch again once it's dialed in.