TriggerTech

TriggerTech Diamond Single-Stage Trigger - AR-15 - Flat 1.5-4 lb - Blue/Black

£339.99

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In stock7–10 day delivery

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Delivery Information

Orders are dispatched from the United Kingdom with tracked delivery. You will receive tracking details by email once your order ships.

Returns & Refunds

Please see our Returns & Refunds policy for full details on returns and exchanges.

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SKU: AR0-SAB-14-NNFUPC: 885768003346

Product Overview

The TriggerTech Diamond is an externally adjustable single-stage drop-in trigger with a flat shoe for AR-15 and M4 pattern rifles.

The trigger that took on creep — TriggerTech's Diamond puts a frictionless 1.5–4 lb (0.7–1.8 kg) break in your AR-15.

The TriggerTech Diamond AR (flat) is built on Frictionless Release Technology: a patented free-rolling component between sear and trigger that removes the sliding friction a conventional trigger drags through. TriggerTech credits it for a break with no perceptible creep — the wall is the shot — plus an ultra-short, tactile reset and a pull that feels lighter than its gauge weight. The Diamond adds precise external adjustability from 1.5 to 4 lb (0.7–1.8 kg) without removing the trigger from the lower.

Stainless internals in a sealed housing keep the mechanism consistent through dust and rain. The flat shoe indexes your finger identically every press — a pairing precision AR-15 shooters have made a fixture on the line.

Why shooters choose the Diamond AR Flat

  • Frictionless Release Technology — a clean, creep-free break
  • Externally adjustable 1.5–4 lb (0.7–1.8 kg) — tune without disassembly
  • Ultra-short tactile reset — fast, certain follow-ups
  • Flat shoe — repeatable finger placement

What the Diamond AR Flat fits

Drop-in fit for AR-15/M4 pattern lower receivers using standard Mil-Spec trigger pins, which includes UK straight-pull AR-15 builds — with a range from 1.5 lb (680 g) up to 4 lb (1.8 kg) this is one of the few triggers that covers a light bench setting and a practical field setting on the same rifle. Confirm your pin size before ordering. Function-check the rifle before live fire.

Specifications

Platform AR-15 / M4
Fits Mil-Spec AR-15 / M4 lower receivers, standard trigger pins
Type Single-stage trigger, Frictionless Release, flat shoe
Material Sealed stainless internals
Finish Blue/Black
Pull weight Adjustable 1.5–4.0 lb (0.7–1.8 kg)
Made in North America
Brand TriggerTech
MPN AR0-SAB-14-NNF

Feel what frictionless means. Order the Diamond AR Flat today — in stock at Xtreme Tactical Gun Parts with free tracked UK delivery in 7–10 days.

Explore more: all Rifle Triggers, AR-15 Parts & Accessories or browse all TriggerTech.

Compatibility & Fitment

Drop-in fit for AR-15/M4 pattern lower receivers with mil-spec trigger pins. Confirm pin size before ordering.

Please confirm platform, interface and fitment requirements before ordering.

Technical Specifications

SKU / MPNAR0-SAB-14-NNF
UPC / Barcode885768003346
BrandTriggerTech

Product Questions

Which lowers is the Diamond compatible with?
It is a drop-in unit for AR-15 and M4 pattern lowers with mil-spec trigger pins, fitted as one sealed cassette. Confirm your receiver's pin size before ordering. No permanent alteration to the lower is involved.
What separates the Diamond from the rest of the TriggerTech range?
The Diamond is the precision end of the line, with tool-less adjustment from 1.5 to 4 lb (0.7–1.8 kg) — a lighter window than the Adaptable models offer. That takes it into genuine match territory while still allowing a sensible working weight if you want one. It uses the same frictionless roller sear as the rest of the range, so the break is free of creep at any setting.
How does the tool-less adjustment work?
You change the weight on the unit itself without stripping it down or fishing for hex keys, which makes it practical to try a couple of settings at the range rather than committing at the bench. After any change, run a full function check before shooting. If you settle on the lightest end of the range, treat the rifle accordingly.
Flat or Pro Curved shoe?
This is the flat-shoe version, which gives a consistent contact point and a slightly straighter rearward press — the usual choice for precision and competition. The Diamond Pro curved is the same trigger with a curved shoe if you prefer a traditional AR feel. Both are covered alongside the alternatives in our AR-15 trigger guide.
How is it shipped?
This one is dispatched from the United Kingdom with free tracked UK delivery in 7–10 days, and you'll get tracking by email when it ships. If a part turns out to be the wrong fit, see our returns policy or contact us and we'll help sort it.

Need Help Choosing the Right Part?

Our UK-based team is happy to help with fitment, compatibility and product questions.