Strike Industries | Enhanced AR-15 Lower Parts Kit | SI-AR-E-LRPTH

The Strike Industries ARELRPTH Enhanced Lower Parts Kit supplies a comprehensive set of lower‑receiver hardware intended for AR‑15 builds and upgrades. The kit bundles a complete set of springs, detents, pins, enhanced catch components and a fire control group in a single package. It is positioned for builders who want a single-sourced parts set for new builds or to replace/upgrade factory lower components.

Typical applications include assembling a new AR‑15 lower and updating a range or target rifle for improved control feel and selector functionality.

Product Specifications

• The manufacturer is Strike Industries.
• The manufacturer part number is SI-AR-E-LRPTH.
• The model is listed as a Lower Parts Kit.
• The kit is compatible with the AR-15 platform.
• The product type is Lower Parts Kit.
• The item is described as an Enhanced Lower Parts Kit.
• The material is reported as Various (multiple component materials per kit).
• The kit includes a fire control group and related hardware; the fire control group is listed in source material but the trigger pull requires review.
• The trigger pull requires review due to conflicting source information.
• The kit includes springs, detents, pins, a buffer retainer, and other lower‑receiver hardware as packaged.
• The kit includes two SI selector levers and an SI selector end plate.
• The kit includes a SI 60–90° 3-in-1 selector shaft.
• The kit includes enhanced bolt catch and enhanced magazine catch, plus a magazine catch button.
• The kit includes pivot and takedown pins and associated springs and detents.
• The UPC is 708747544954.

This kit assembles the essential lower‑receiver components in one package, reducing parts-sourcing time for builders and offering an upgraded set of selector and catch hardware for users who prefer a consolidated upgrade path. The included parts cover most lower build needs except for the grip and stock assembly hardware.