The ALG Defense AR-15 Lower Parts Kit W/ QMS Trigger is a complete mil-spec lower receiver kit built around ALG’s Quality Mil-Spec (QMS) trigger. Designed for AR-15 platform rifles, this kit provides all the core controls and small parts needed to finish a stripped lower with a clean, consistent trigger pull that remains true to mil-spec while offering a smoother break.

This kit is ideal for builders who want a reliable, duty-ready lower without chasing individual components. It includes the QMS fire control group along with bolt catch, magazine release, safety selector, takedown pins, springs, and detents, all matched to work together for dependable function. Whether you are assembling a new rifle, refreshing a well-used lower, or putting together a training gun, this kit delivers straightforward installation and proven performance backed by ALG Defense’s reputation for practical, well-engineered parts.

Key Features:

• Manufacturer: ALG Defense
• Model: AR-15 Lower Parts Kit W/ QMS Trigger
• Gun Make: AR Platform
• Gun Model: AR-15
• Trigger Type: QMS (Quality Mil-Spec) Trigger
• Included Components: Bolt Catch, Mag Release, Safety, Takedown Pins, Trigger Guard, Springs, Detents, Roll Pins, QMS Trigger