This bundle pairs a Midwest Industries single-stage drop-in AR-15 trigger with a lower parts kit, so you can finish a stripped mil-spec lower in one purchase. The trigger is a self-contained cassette with a 3.5 lb pull. It drops into the lower as one unit, so there are no individual trigger and hammer springs to wrestle into place.

The lower parts kit covers the rest of the build, so you can buy the fire-control upgrade and the small parts together instead of piecing them out. This makes it a good fit for a first build or a second lower.

Features:

• Single-stage drop-in trigger cassette, no individual spring or pin assembly required
• 3.5 lb pull weight
• Bundled lower parts kit to complete the lower
• Fits small-pin (.154") mil-spec AR-15 lowers

Compatibility: This trigger fits small-pin mil-spec lowers only. It does not fit large-pin Colt lowers. Confirm your lower's pin size before ordering. After installing, do a full function check of the safety, trigger reset and hammer before live fire.