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Franklin Armory
Overview
The Franklin Armory BFSIII AR-S1 Binary Trigger is designed specifically for AR-15 and AR-10 platforms, offering a unique binary firing mode that allows the shooter to fire on both the pull and release of the trigger. This feature enhances the shooting experience by providing a rapid-fire capability, making it ideal for competitive shooting and tactical applications. Commonly, you'll find this trigger in builds featuring a mid-length gas system and chambered in 5.56 NATO, where its responsiveness can significantly elevate performance.
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Based on build data

Superlative Arms Bleed Off Adjustable Gas Block Clamp on .875" -Titanium - Dlc Dark Finish
Gas Block
Wilson Combat Ar-15 Billet Upper Receiver
Upper Receiver
Noveske Rifleworks N4 Gen 4 Stripped Ambidextrous Ar-15 Lower Receiver
Lower Receiver
BLEM PSA AR15 Complete Classic Stealth Lower, Black
Lower Receiver
Daniel Defense 14.5" 5.56 Nato Chf Mid-Length 1:7 Government Contour Ar-15 Barrel With Gas Block
Barrel
Daniel Defense Mfr Xl Free Float Ar-15 Handguard - M-Lok - 9"
HandguardAggregated and anonymized data showing how builders use this product
| Product | Category | Times Built Together |
|---|---|---|
| Superlative Arms Bleed Off Adjustable Gas Block Clamp on .875" -Titanium - Dlc Dark Finish | Gas Block | 5 |
| Wilson Combat Ar-15 Billet Upper Receiver | Upper Receiver | 4 |
| Noveske Rifleworks N4 Gen 4 Stripped Ambidextrous Ar-15 Lower Receiver | Lower Receiver | 4 |
| BLEM PSA AR15 Complete Classic Stealth Lower, Black | Lower Receiver | 4 |
| Daniel Defense 14.5" 5.56 Nato Chf Mid-Length 1:7 Government Contour Ar-15 Barrel With Gas Block | Barrel | 3 |
| Daniel Defense Mfr Xl Free Float Ar-15 Handguard - M-Lok - 9" | Handguard | 3 |
| Platform | Percentage |
|---|---|
| AR-15 | 94.4% |
| AR-9 | 5.6% |
| Caliber | Percentage |
|---|---|
| 5.56 NATO | 76.5% |
| .450 Bushmaster | 5.9% |
| 300 Blackout | 5.9% |
| 7.62x39mm | 5.9% |
| .223 Wylde | 5.9% |
| Gas System | Percentage |
|---|---|
| Mid-Length | 50% |
| Carbine | 33.3% |
| Rifle | 11.1% |
| Pistol | 5.6% |
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