Bolt Catch Plunger, Spring and Roll Pin Set

This AR-15 bolt catch plunger, spring, and roll pin set is a complete replacement kit for the small components that control proper bolt catch function. Designed for Mil-Spec AR-15 rifles, this kit restores reliable bolt lock-back and smooth bolt release when worn or missing parts need to be replaced.

The set includes the bolt catch plunger, spring, and roll pin—everything required for a straightforward installation during a new build, repair, or lower receiver refresh. Whether you’re completing a stripped lower or servicing an existing rifle, these small but critical components ensure proper tension and engagement of the bolt catch.

Built to Mil-Spec standards, this kit is ready to install and compatible with AR-15 platforms only.

Features & Specs:

• Replacement bolt catch small parts kit

• Includes plunger, spring, and roll pin

• Designed for Mil-Spec AR-15 rifles

• Restores proper bolt catch function

• Ready to install

• Fits AR-15 platforms only