Palmetto State Match Grade Drop in trigger Upgrade- PSA Trigger

Published on February 5, 2025
Duration: 7:17

This guide details the installation and optional polishing of a Palmetto State Armory drop-in trigger for AR-15 platforms. It covers the careful removal of the grip and its retaining components, the process of polishing contact surfaces for a smoother pull, and reassembly. The video emphasizes maintaining firearm safety throughout the process.

Quick Summary

Installing a Palmetto State Armory drop-in trigger involves removing trigger and safety pins, carefully detaching the grip while securing the safety selector's spring and detent, then reassembling the new trigger into the receiver. Optional polishing of contact surfaces can further enhance the trigger's smoothness for a crisper pull.

Chapters

  1. 00:02Introduction to Trigger Upgrade
  2. 00:27Gathering Tools and Initial Disassembly
  3. 00:36Removing Trigger and Safety Pins
  4. 00:42Removing the Grip and Safety Selector Components
  5. 01:56Identifying Small Parts (Brass Piece, Spring)
  6. 02:07Cleaning and Maintenance of Trigger Components
  7. 02:29Identifying Parts for Polishing
  8. 03:08Polishing Techniques for Match Grade Triggers
  9. 03:36Using 'Fake Money' for Polishing
  10. 04:16Desired Mirror-Like Finish
  11. 05:00Polishing Edges and Surfaces
  12. 05:20Polishing the Round Trigger Mechanism Part
  13. 05:32Cleaning Up Polishing Residue
  14. 06:07Polishing Hard-to-Reach Areas
  15. 06:15Preparing for Reassembly
  16. 06:19Reassembly Order: Trigger, Safety, Grip, Pins
  17. 06:30Dry Fire Test and Function Check
  18. 06:38Testing the Single-Stage Trigger Pull
  19. 06:47Trigger Feel: Crisper, Little Take-Up
  20. 07:11Identifying the Trigger: PSA Drop-In

Frequently Asked Questions

What are the key steps to installing a PSA drop-in trigger?

First, ensure the firearm is clear. Remove trigger and safety pins, then carefully detach the grip, being mindful of the safety selector's spring and detent. Reinstall the new trigger assembly into the grip, then into the receiver, and finally, reinsert the pins.

How can I improve the feel of a match-grade drop-in trigger?

For match-grade triggers, a light polish on critical contact surfaces can enhance smoothness. Use a non-abrasive method to achieve a mirror-like finish on the lock mechanism and the round trigger part, avoiding rounding edges.

What small parts are crucial to watch out for during AR-15 grip removal?

When removing the grip, pay close attention to the safety selector detent spring and its small retaining piece. These can easily fly out and get lost if not held securely during disassembly.

What is the benefit of a drop-in trigger compared to a stock trigger?

Drop-in triggers, like the PSA model, typically offer a crisper break and significantly less take-up than standard stock triggers, leading to a more refined shooting experience.

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