Answers for Will this work on a colt 9mm AR lower?

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Fostech + Gun Parts FosTech Outdoors Gun Parts Fostech Echo Sport AR-15 Binary Trigger Fostech Echo Sport AR-15 Binary Trigger Q&A Question - Will this work on a colt 9mm AR lower? Fostech + Gun Parts FosTech Outdoors Gun Parts + Rifle Parts FosTech Outdoors Rifle Parts + Rifle Triggers FosTech Outdoors Triggers Fostech Echo Sport AR-15 Binary Trigger Fostech Echo Sport AR-15 Binary Trigger Q&A Question - Will this work on a colt 9mm AR lower? Fostech + Gun Parts FosTech Outdoors Gun Parts + AR 15 Parts FosTech Outdoors AR15 Parts Fostech Echo Sport AR-15 Binary Trigger Fostech Echo Sport AR-15 Binary Trigger Q&A Question - Will this work on a colt 9mm AR lower? Fostech + Gun Parts FosTech Outdoors Gun Parts + Rifle Parts FosTech Outdoors Rifle Parts + AR 15 Parts FosTech Outdoors AR15 Parts Fostech Echo Sport AR-15 Binary Trigger Fostech Echo Sport AR-15 Binary Trigger Q&A Question - Will this work on a colt 9mm AR lower? Fostech + Gun Parts FosTech Outdoors Gun Parts + Rifle Parts FosTech Outdoors Rifle Parts Fostech Echo Sport AR-15 Binary Trigger Fostech Echo Sport AR-15 Binary Trigger Q&A Question - Will this work on a colt 9mm AR lower? Fostech + Gun Parts FosTech Outdoors Gun Parts + Rifle Parts FosTech Outdoors Rifle Parts + Rifle Triggers FosTech Outdoors Triggers + Binary Rifle Triggers Fostech Binary Rifle Triggers Fostech Echo Sport AR-15 Binary Trigger Fostech Echo Sport AR-15 Binary Trigger Q&A Question - Will this work on a colt 9mm AR lower?

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Fostech Echo Sport AR-15 Binary Trigger

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Answered by Ethan, Gear Expert, from IL, United States, on March 27, 2023

Yes, the Fostech Echo Sport AR-15 Trigger will be compatible with your Colt AR9 lower receiver. However, if you have a 90's era Colt, you would need to use a trigger that comes with large trigger pins.

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Fostech + Gun Parts FosTech Outdoors Gun Parts Fostech Echo Sport AR-15 Binary Trigger Fostech Echo Sport AR-15 Binary Trigger Q&A Question - Will this work on a colt 9mm AR lower? Fostech + Gun Parts FosTech Outdoors Gun Parts + Rifle Parts FosTech Outdoors Rifle Parts + Rifle Triggers FosTech Outdoors Triggers Fostech Echo Sport AR-15 Binary Trigger Fostech Echo Sport AR-15 Binary Trigger Q&A Question - Will this work on a colt 9mm AR lower? Fostech + Gun Parts FosTech Outdoors Gun Parts + AR 15 Parts FosTech Outdoors AR15 Parts Fostech Echo Sport AR-15 Binary Trigger Fostech Echo Sport AR-15 Binary Trigger Q&A Question - Will this work on a colt 9mm AR lower? Fostech + Gun Parts FosTech Outdoors Gun Parts + Rifle Parts FosTech Outdoors Rifle Parts + AR 15 Parts FosTech Outdoors AR15 Parts Fostech Echo Sport AR-15 Binary Trigger Fostech Echo Sport AR-15 Binary Trigger Q&A Question - Will this work on a colt 9mm AR lower? Fostech + Gun Parts FosTech Outdoors Gun Parts + Rifle Parts FosTech Outdoors Rifle Parts Fostech Echo Sport AR-15 Binary Trigger Fostech Echo Sport AR-15 Binary Trigger Q&A Question - Will this work on a colt 9mm AR lower? Fostech + Gun Parts FosTech Outdoors Gun Parts + Rifle Parts FosTech Outdoors Rifle Parts + Rifle Triggers FosTech Outdoors Triggers + Binary Rifle Triggers Fostech Binary Rifle Triggers Fostech Echo Sport AR-15 Binary Trigger Fostech Echo Sport AR-15 Binary Trigger Q&A Question - Will this work on a colt 9mm AR lower?

Last updated 2025-11-12 UTC.