The Lead & Steel Mil-Spec AR-15 Lower Spring Kit (brand part no. LSLSK) bundles every small spring an AR-15 lower parts kit needs into one affordable package, making it an easy pickup for a build, a repair, or spare parts on the bench. The kit includes a hammer spring, trigger spring, disconnector spring, safety spring, two detent springs, a buffer retainer spring, a magazine catch spring, and a bolt catch spring, covering the springs most likely to wear out or get lost during a lower build. Every spring is built to mil-spec dimensions for drop-in compatibility with standard AR-15 lower parts kits. Among gun parts, this spring kit favors builders and gunsmiths who want a complete spare-parts set on hand.

Key Specifications

• The kit includes one hammer spring.
• The kit includes one trigger spring.
• The kit includes one disconnector spring.
• The kit includes one safety spring.
• The kit includes two detent springs.
• The kit includes one buffer retainer spring.
• The kit includes one magazine catch spring.
• The kit includes one bolt catch spring.

Frequently Asked Questions

What springs are included in this kit? A hammer spring, trigger spring, disconnector spring, safety spring, two detent springs, a buffer retainer spring, a magazine catch spring, and a bolt catch spring.

Are these mil-spec dimensions? Yes, every spring in the kit is built to mil-spec for drop-in compatibility with standard AR-15 lower parts kits.

Buy the Lead & Steel Mil-Spec Lower Spring Kit

A complete spring kit on hand saves a trip to the parts drawer mid-build. Order this Lead & Steel spring kit from our Lubbock, Texas gun shop for fast, direct shipping.