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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.
Prices checked
ALG Defense Qms AR-15 Trigger Set is the fifth most added trigger on GunPartPicker so far in October 2026, behind the Geissele Automatics AR-15 SSA X Lightning Bow Trigger, with about 4% of all triggers added to builds. Up from #6 in September. Builds with this trigger are mostly chambered in 5.56 NATO (76%, then .223 Wylde 8%), split between mid-length (56%) and carbine-length (20%) gas systems, and mostly AR-15 (95%).
Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today 7 of the 8 retailers we track have it in stock. It dipped to $60.74 at GritR Sports for a stretch in September 2026, under its usual $65, so sales do come around. Buying today, the lowest price is $63.16 at KY Gun Company.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 37 retailers
We ranked every trigger by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Trigger Popularity Report →Check it against the live catalog:
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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 | $574.80 |
 | 23 | $2361.59 |
 | 10 | $951.10 |
 | 18 | $1377.24 |
 | 11 | $644.89 |
 | 22 | $1002.77 |
 | 10 | $751.59 |
 | 11 | $1390.19 |
| 16 | $3694.45 |
 | 11 | $934.25 |
 | 9 | $654.89 |
 | 12 | $701.52 |
1 global rating
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.
