The TriggerTech Diamond Pro is an externally adjustable single-stage drop-in trigger with a Pro Curved shoe for AR-15 and M4 pattern rifles.
Diamond performance through TriggerTech's signature Pro Curved shoe — adjustable, frictionless and instantly familiar.
The TriggerTech Diamond Pro AR pairs the flagship Diamond internals — Frictionless Release Technology and external 1.5–4 lb adjustability — with the Pro Curved shoe, TriggerTech's refined take on the traditional curve. The gentle radius guides the finger pad to center naturally while retaining classic feel, making it the pick for shooters moving off conventional triggers who want familiarity without compromise.
TriggerTech credits the free-rolling release for a pull that feels lighter than its measured weight and breaks the same press after press. Internals are sealed stainless — see the specification table below.
Key Features
- Frictionless Release break — the wall is the shot
- Externally adjustable 1.5–4 lb — match to field weights on one unit
- Pro Curved shoe — classic feel, self-centering geometry
- Ultra-short tactile reset — speed without hunting
Compatibility & Fitment
Drop-in fit for AR-15/M4 pattern lower receivers with standard Mil-Spec trigger pins. Confirm your pin size before ordering. Function-check the rifle before live fire.
Technical Specifications
Platform | AR-15 / M4 |
Fits | Mil-Spec AR-15 / M4 lower receivers, standard trigger pins |
Type | Single-stage trigger, Frictionless Release, Pro Curved shoe |
Material | Sealed stainless internals |
Finish | Blue/Black |
Pull Weight | Adjustable 1.5–4.0 lb |
Made in | North America |
Brand | TriggerTech |
US Shipping & Support
Shipped from D&R Sports Center in the USA with fast, tracked delivery. Questions on fit, mounting or which model suits your setup? Our team is glad to help before and after your purchase.
Frequently Asked Questions
Does the Diamond Pro fit standard AR-15 lowers?
Yes, it drops into AR-15 and M4 pattern receivers using mil-spec trigger pins and needs no machining. As always with drop-in triggers, confirm pin size before ordering. It installs as a single cassette rather than separate trigger and hammer parts.
What is the 'Pro Curved' shoe about?
It is TriggerTech's curved trigger face, shaped for shooters who prefer the traditional AR profile over a flat bow. The curve tends to center your finger naturally, which some people find quicker to pick up under time pressure. Mechanically it is identical to the flat-shoe Diamond — the difference is only where and how your finger sits.
How light can I set it?
The Diamond adjusts tool-lessly between 1.5 and 4 lb, giving you a genuine match weight at the bottom and a practical one at the top. The frictionless roller sear means the release stays clean across that range rather than getting mushy when you go light. Function-check the rifle after every adjustment.
Should I buy this or the flat-shoe Diamond?
Buy on shoe shape alone: this curved version if your muscle memory is built on standard AR triggers, or the flat-shoe Diamond if you want a fixed contact point for precision work. Both come in the same Blue/Black finish and the same weight range.
