The Derya TM-22 has rapidly become one of Canada’s favorite .22 LR platforms due to its reliable aluminum construction and AR-style ergonomics. However, for shooters looking to transition from a “plinker” to a high-performance competition or precision rimfire rig, the factory configuration is only the starting point. At Rangeview Sports, we offer a suite of specialized upgrades and professional installation services designed to enhance the tactile feel, speed, and manual of arms of your TM-22.

1. Advanced Two-Stage Trigger Upgrade

The most significant limitation of the factory TM-22 is its heavy, single-stage military-style trigger. Our premium upgrade converts the trigger group into a refined two-stage system, offering a predictable “wall” and a crisp, match-grade break. To suit your specific shooting style, we offer four distinct trigger shoe profiles:

  • Flat Blade (Straight): The choice for precision shooters, allowing for consistent finger placement and mechanical advantage regardless of where you pull.
  • Curved Blade: The classic ergonomic feel, perfect for high-speed transition shooting and traditionalists.
  • Short Flat Blade: Optimized for shooters with smaller hands or those who prefer a more compact reach within the trigger guard.
  • Angled Blade: A specialized hybrid design that provides a unique tactile reference point for consistent finger indexing.

2. Manual Bolt Hold Open (BHO) Integration

Speed and safety are paramount in rimfire competitions like NRL22. The standard TM-22 lacks a dedicated manual bolt hold open. Our BHO upgrade allows the shooter to manually lock the bolt to the rear with ease. This is essential for:

  • Showing a clear breech during range “cold” commands.
  • Easier cleaning and maintenance without fighting recoil spring tension.
  • Clearing malfunctions safely and efficiently.

3. Dedicated Charging Handle Bolt Cycle (Bolt Pull Only)

For shooters who want a streamlined operation or specific competitive advantages, we offer a “Bolt Pull Only” modification. This service optimizes the cycling mechanics of the charging handle, ensuring the smoothest possible rearward travel. By reducing friction and fine-tuning the bolt’s path, you gain faster follow-up shots and a more premium, “broken-in” feel to the action.

Professional Installation & Package Pricing

At Rangeview Sports, we don’t just sell the parts; our expert gunsmiths provide professional installation to ensure your upgrades are timed and tuned perfectly. Skip the headache of DIY and let our team handle the technical work.

Service ItemPrice (MSRP)
Two-Stage Trigger Upgrade (Any Shoe Style)$140 + tax
Manual Bolt Hold Open Installation$80 + tax
Charging Handle Installation Service$110 + tax
Complete “Full House” Performance Package$260 + tax

The Full House Package ($260 + tax): This all-in-one “Turnkey” service includes all three upgrades—the Two-Stage Trigger, Bolt Hold Open, and Bolt Cycle optimization—saving you nearly $70 compared to individual installations.

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