TriggerTech Duty Single-Stage Trigger - AR-15 - Flat - Black
Mix and match across the range: 2 items save 5%, 3 save 10%, 4 or more save 15% on your whole basket.
Drop-in fit for AR-15/M4 pattern lower receivers with mil-spec trigger pins. Confirm pin size before ordering.
Not sure it fits your rifle? Ask us before you order
The TriggerTech Duty is a single-stage drop-in trigger with a flat shoe for AR-15 and M4 pattern rifles.
Hard-use reliability with a modern edge — the flat-shoe Duty brings frictionless certainty to working rifles.
The TriggerTech Duty Single-Stage AR (flat) pairs a robust pull weight with the flat shoe modern training favours: a consistent, low finger position and a press that drives straight to the rear. Frictionless Release Technology is what TriggerTech credits for keeping that heavier pull free of creep and grit, so the trigger feels controlled and deliberate rather than merely heavy.
Sealed stainless internals handle rain, dust and neglect; the fixed configuration means nothing to set. It is the hard-use trigger for shooters who train the modern way.
Drop-in fit for AR-15/M4 pattern lower receivers with standard Mil-Spec trigger pins, which includes UK straight-pull AR-15 builds — a fixed, forgiving weight with a flat shoe suits a rifle shot in gloves and in poor weather. Confirm your pin size before ordering. Function-check the rifle before live fire.
| Platform | AR-15 / M4 |
|---|---|
| Fits | Mil-Spec AR-15 / M4 lower receivers, standard trigger pins |
| Type | Single-stage duty trigger, Frictionless Release, flat shoe |
| Material | Sealed stainless internals |
| Finish | Black |
| Made in | North America |
| Brand | TriggerTech |
| MPN | AH0-SDB-33-NNF |
Modern mechanics, hard-use dependability. Order the Duty Flat today — imported from the USA with all duties paid by us and dispatched tracked from the UK in 7–10 business days, with nothing to pay on delivery.
Explore more: all Rifle Triggers, AR-15 Parts & Accessories or browse all TriggerTech.
| Platform | AR-15 / M4 |
|---|---|
| Fits | Mil-Spec AR-15 / M4 lower receivers, standard trigger pins |
| Type | Single-stage duty trigger, Frictionless Release, flat shoe |
| Material | Sealed stainless internals |
| Finish | Black |
| Made in | North America |
| Brand | TriggerTech |
| MPN | AH0-SDB-33-NNF |
| Category | Trigger |
| Shipping weight | 0.1 kg |
| Barcode | 885768003520 |
£5 tracked UK delivery on every order via Royal Mail Tracked 24. Our products are ordered in from the manufacturer rather than held in UK stock, so please allow 7 to 10 business days (Monday to Friday, excluding bank holidays) from the date of your order for it to reach you. Tracking details are emailed on dispatch. UK delivery only.
You have 30 days from receiving your order to cancel it for any reason, then 14 days to send it back unused and in its original packaging. Faulty, damaged or incorrect items are replaced or refunded and we cover reasonable return postage. Refunds go back to your original payment method within 14 days of receiving the return.
It is a drop-in fit for AR-15/M4 pattern lower receivers with mil-spec trigger pins, so it swaps directly for the standard fire control group. Large-pin lowers are a different fitment, so check your receiver before ordering. Nothing needs machining or permanent modification.
The straight face pulls directly rearwards and keeps your finger in the same spot every shot, which helps consistency when you are shooting quickly. It also sits slightly lower in the guard, so it suits shooters with longer fingers or a more vertical grip. The trade-off is that it feels different from a factory trigger, so give yourself some dry practice to settle in.
Duty is the hard-use, set-weight single-stage option, so there is no adjustment to check and nothing to drift. The Competitive, Adaptable and Diamond models step up to fixed competition weights or user-adjustable ranges. You can compare the options across the <a href="/collections/ar-15-triggers">AR-15 triggers</a> we stock.
Nothing beyond your existing trigger pins and a small punch to drive them out and back in. Support the lower properly while you work so you do not mark the receiver, and keep the safety selector and pistol grip hardware to hand as you reassemble. Function-check the rifle unloaded, including the safety, before use.
Everything ships from the United Kingdom with £5 tracked UK delivery in 7–10 business days, and you'll get tracking by email at dispatch. If a part turns out to be the wrong fit, see our returns policy or <a href="/pages/contact">contact us</a> and we'll help sort it.
7 to 10 business days from the date of your order. Every order is sent Royal Mail Tracked for a flat £5 and you receive tracking details by email when it is dispatched.
Yes. We list only genuine parts and optics from the brands shown, ordered in from the manufacturer for your order.
Compatibility notes on this page come from the manufacturer. If you are unsure, email us with your make and model before ordering and we will check rather than guess.
Yes. Bundle & Save applies automatically in your basket: 5% off when you buy 2 items, 10% off at 3 items and 15% off at 4 or more. It works across the whole range, so you can mix and match, and there is no code to enter.
Yes — you have 30 days from delivery to cancel for any reason, as long as the item is unused and in its original packaging. See our returns policy for the details.
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