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ALG Defense
Overview
The ALG Defense QMS AR-15 Trigger Set is a single-stage trigger designed for AR-15 and AR-10 platforms, offering a pull weight between 5 to 8 pounds. Its curved trigger bow provides a comfortable interface for the shooter, enhancing overall control during firing. This trigger is often utilized in builds featuring a mid-length gas system, particularly with 5.56 NATO caliber setups, making it a solid choice for those looking to improve their shooting experience.
ALG Defense Qms AR-15 Trigger Set was the fifth most added trigger on GunPartPicker in August 2026, behind the Rise Armament Advanced Performance Trigger, Red - RA-535-RED-ARP, with about 5% of all triggers added to builds. That's its 4th straight month at #5. Builds with this trigger are mostly chambered in 5.56 NATO (70%, then .223 Wylde 13%), split between mid-length (60%) and carbine-length (19%) gas systems, and mostly AR-15 (83%, then AR-10 14%).
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today 8 of the 9 retailers we track have it in stock. The best price crept up from $60.74 to $63.16 over August 2026. Buying today, the lowest price is $60.74 at GritR Sports, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
We ranked every trigger by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Trigger Popularity Report →The part most often added in each category by the 859 builds that include this one
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Aggregated and anonymized data showing how builders use this product
Builds in the community that include the Alg Defense Qms Ar-15 Trigger Set
| Build | Parts | Total |
|---|---|---|
 | 12 | $676.22 |
 | 23 | $2419.45 |
 | 10 | $931.43 |
 | 18 | $1374.70 |
 | 11 | $642.55 |
 | 22 | $1011.53 |
 | 10 | $747.80 |
 | 11 | $1359.60 |
| 16 | $3720.70 |
 | 11 | $952.25 |
 | 9 | $662.59 |
 | 12 | $655.20 |
6 global ratings
Top reviews
ALG Defense QMS trigger set drops in with no fitting required. Pull is consistent at around 6 pounds. Reset is positive and you can feel the click. Phosphate finish on all the steel parts. Solid budget upgrade from a basic milspec trigger.
ALG Defense QMS trigger was crisp but a little gritty for the first 100 pulls. Smoothed out after break in. Pull weight is around 5.5 lb. Reset is short. Solid budget upgrade from a basic milspec FCG once worn in.
wall is defined with a crisp break and almost no creep, reset is short and tactile. for a mil spec geometry trigger this is among the best you can get. drop in on a mil spec lower was clean, no oversize pin issues
ALG QMS trigger set has a noticeably shorter reset than a mil spec trigger which took some adjustment getting used to. Break is around 5.5 pounds. Good budget upgrade over standard milspec parts.
ALG Defense QMS trigger is a great range trigger with a clean break around 5.5 lb. A bit light for a true duty rifle in my opinion - I prefer more first stage take up for those applications. For a range or competition setup its excellent value.
ALG QMS trigger is a noticeable improvement over a basic milspec trigger. Break is smoother. Reset is short. Wish anti-walk pins were included since theyre a common pairing for ALG triggers.
