Elftmann ELF APEX PRO SE w/ PRO LOCK & FA Knob | AR Drop-In Trigger | Straight | Black

Elftmann Tactical^® ELF APEX PRO SE | Drop-In AR Trigger w/ PRO-LOCK™ & FA Knob | Straight | Black

APEX Speed with PRO-LOCK™ Security and FA Adjustability

The Elftmann Tactical^® ELF APEX PRO SE Drop-In AR Trigger with PRO-LOCK™ retention system and Flat Adjustable (FA) Knob delivers lightweight, competition-ready performance with enhanced user control. Featuring a straight trigger shoe and a crisp 2.75 lb factory-set pull weight, this trigger is engineered for shooters who demand speed, precision, and stability across all AR platforms.

PRO-LOCK™ Retention System

Elftmann’s proprietary PRO-LOCK™ system secures the trigger module firmly inside the lower receiver, eliminating movement under recoil or extended firing schedules. This design combines the solid feel of a fixed-pin trigger with the convenience of a true drop-in installation—no adhesives, proprietary pins, or permanent modifications required.

Flat Adjustable (FA) Knob Control

The integrated FA Knob allows shooters to fine-tune trigger pull feel without removing the trigger from the receiver. This on-the-fly adjustability makes it easy to tailor performance to personal preference or shooting conditions while maintaining consistent engagement geometry and a fast, tactile reset.

APEX Trigger Geometry

Built around Elftmann’s lightweight APEX trigger geometry, the APEX PRO SE emphasizes minimal take-up, a clean break, and rapid reset. The straight trigger shoe promotes consistent finger placement and a linear pull, supporting fast follow-up shots and repeatable accuracy.

Match-Grade Construction

Precision CNC-machined from A2 tool steel and aircraft-grade aluminum, the APEX PRO SE offers excellent durability with reduced mass for faster trigger response. A durable black anodized finish provides corrosion resistance and a clean, understated appearance that complements any AR platform.

Simple Drop-In Installation

The self-contained APEX PRO SE installs easily into any standard AR lower receiver. Drop the trigger module into place, secure the PRO-LOCK™ system, and adjust the FA Knob as desired. No gunsmithing or fitting is required, and once installed, the trigger remains stable through extended use.

Elftmann Tactical^® APEX PRO SE AR Trigger Specifications

• Trigger Type: Drop-In AR Trigger Assembly
• Model: APEX PRO SE w/ PRO-LOCK™ & FA Knob
• Trigger Shoe: Straight
• Pull Weight: 2.75 lbs (Factory Set, User Adjustable)
• Material: A2 Tool Steel & Aircraft-Grade Aluminum
• Finish: Black Anodized
• Compatibility: AR Platforms
• Installation: Drop-In, No Gunsmithing Required
• Retention: PRO-LOCK™ Secure Installation System
• Made In: U.S.A.

Fast, Adjustable, and Built to Perform

The Elftmann Tactical^® ELF APEX PRO SE Drop-In AR Trigger with straight black shoe combines lightweight APEX performance with the added security of PRO-LOCK™ and the flexibility of the FA Knob. It’s an ideal upgrade for shooters who demand precision, control, and consistency from their AR platform.

Shop AR Components

Explore our complete selection of AR Components at Arm or Ally. Every Elftmann Tactical^® trigger is proudly made in the U.S.A. and engineered for uncompromising performance and long-term reliability.