RISE Armament RA-535 Advanced-Performance Trigger (APT)

RISE Armament RA-535 Advanced-Performance Trigger (APT)

The RISE Armament RA-535 Advanced-Performance Trigger is a premium single-stage drop-in trigger designed for AR-platform rifles, delivering a crisp break, minimal take-up, and an exceptionally short reset. Engineered for competitive shooting and precision applications, it provides consistent trigger performance for shooters who demand responsive control and repeatability.

Featuring precision-machined, heat-treated S7 tool steel internal components housed in a 6061 aerospace-grade aluminum cassette, the RA-535 combines durability with refined trigger operation. Its Nickel-Teflon® coated internal components help reduce friction and provide a smooth, consistent pull.

The RA-535 features a hybrid trigger bow, a nominal 3.5 lb pull weight, and included anti-rotation pins to help secure the trigger assembly. Its drop-in cassette design simplifies installation in compatible AR-pattern lower receivers.

Key Features

• Single-Stage Design: Crisp break with minimal take-up and overtravel.

• 3.5 lb Trigger Pull: Designed for consistent, controlled trigger operation.

• Short, Tactile Reset: Supports fast, repeatable follow-up shots.

• Nickel-Teflon® Coating: Reduces friction and provides a smooth trigger feel.

• Heat-Treated S7 Tool Steel Internals: Built for durability and consistent hammer performance.

• 6061 Aerospace-Grade Aluminum Housing: Lightweight, rigid cassette construction.

• Hybrid Trigger Bow: Combines features of curved and flat trigger profiles.

• Anti-Rotation Pins Included: Helps prevent trigger pins from rotating or walking out.

• Drop-In Installation: Self-contained trigger assembly for compatible AR-pattern platforms.

• Made in the USA: Manufactured by RISE Armament.

Technical Specifications

• Brand: RISE Armament

• Model: RA-535 Advanced-Performance Trigger (APT)

• Trigger Type: Single-stage, drop-in cassette

• Nominal Pull Weight: 3.5 lb

• Trigger Bow: Hybrid

• Internal Material: Heat-treated S7 tool steel

• Internal Coating: Nickel-Teflon®

• Housing Material: 6061 aerospace-grade aluminum

• Unit Weight: Approximately 2.3 oz

• Included Pins: Anti-rotation pins

• Platform Compatibility: Compatible AR-15-pattern lower receivers; verify compatibility with the specific firearm and receiver configuration

• Country of Manufacture: United States

Package Contents

• RISE Armament RA-535 APT Trigger Assembly

• Anti-rotation pins

• Installation hardware and tools supplied by the manufacturer

• Product documentation

Available at Alpha Armory.

Professional installation and a complete function check are recommended. Confirm firearm compatibility before purchase.