ALG Defense ACT Advanced Combat Trigger
Enhanced mil-spec-pattern single-stage trigger for the AR-15 and AR-10, built by Geissele's sister brand as a budget upgrade over the standard GI trigger. The pull weight is close to a mil-spec trigger, but the sear surfaces are polished and the components HardLubed for a smoother, sharper break. Trigger, hammer, springs and disconnector all share mil-spec pins so it drops into an existing lower with no fitting.
- Category
- Trigger
- Manufacturer
- ALG Defense
- Weight
- Not recorded
- Mounts at
- Not recorded
Specification
Everything measured
IdentityWhat it is and who made it.
- Category
- Trigger
- Manufacturer
- ALG Defense
- Model number
- 05-199
- Factory part
- No
FitmentThe interface it offers and the one it needs, rather than a list of guns it claims to fit.
- AR-15 mil-spec trigger pocket (0.154 in pins)
trigger:ar15
Needs
ProvenanceEvery figure above was taken from one of these pages. The confidence reflects how much of the record came from a page a claim can be checked against.
Confidence in this record
75%
Stockists
Where to buy
Offers link straight to the shop. GunSpec never takes the order.
No shop has listed this part yet
Stock and prices come from the shops themselves. If you sell this part, you can list it and it appears here.
List a partCompatibility
Which firearms take this part
Studio
Every firearm this threads onto, resolved
Not a list the maker typed out: the answer comes from the interface this part needs and the mounts each firearm exposes, so it stays right when either one changes.
- The reverse lookup on every part in the catalogue
- Interface standards, platforms and fit overrides
- The same answers through the API and the MCP server
Requires a signed-in GunSpec account on the Studio plan. The answer is computed per firearm, so it is not part of the public record.
API
The call that returns this record
The same fields, in the same units, from the same endpoint the page reads.
curl --request GET \ --url 'https://api.gunspec.io/v1/attachments/alg-defense-act' \ --header 'X-API-Key: your_key'{ "id": "alg-defense-act", "name": "ALG Defense ACT Advanced Combat Trigger", "category": "trigger", "manufacturer": { "id": "alg-defense", "name": "ALG Defense" }, "weight_g": null, "length_mm": null, "requires_position": null, "provides": [], "requires": [ [ { "id": "trigger:ar15", "name": "AR-15 mil-spec trigger pocket (0.154 in pins)", "kind": "trigger_pocket" } ] ]}