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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.
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 Mfr Xl Free Float Ar-15 Handguard - M-Lok - 9"
Handguard
Strike Industries Cobra Billet Aluminum Trigger Guard - Red
Trigger GuardAggregated 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 Mfr Xl Free Float Ar-15 Handguard - M-Lok - 9" | Handguard | 3 |
| Strike Industries Cobra Billet Aluminum Trigger Guard - Red | Trigger Guard | 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% |
Builds in the community that include the Franklin Armory BFSIII AR-S1 Binary Trigger - 5645A
| Build | Parts | Total |
|---|---|---|
 | 18 | $1153.95 |
 | 22 | $1739.50 |
 | 27 | $2041.05 |
 | 25 | $2215.92 |
 | 20 | $4826.43 |
 | 22 | $1361.13 |
1 global rating
Franklin Armory BFSIII AR-S1 binary trigger has a clean break in semi mode and a fast binary mode that fires on press and release. A bit light for duty use which is appropriate for a recreational trigger. Excellent for range fun.
