BFSIII™ Binary Firing System™ with Installation

$511.98 - $754.98
Current Stock:

The Binary Firing System III™ with Installation.


Standard turnaround time is 16+ weeks on in stock items

Simply select the trigger you wish to purchase and follow the instructions below to send in your compatible firearm*. This package includes the price of the BFSIII™, Installation performed by a Franklin Armory® Certified Armorer, test firing, and return shipping.

Additional lead times may apply:

AR-C1: 16+ WEEKS

AR-S1: 16+ WEEKS


AK-C1: 16+ WEEKS

AK9-C1: 16+ WEEKS

B&T-C1: 16+ WEEKS


HK-C1: 16+ WEEKS



  • Must include legible scan of State ID or driver’s license (The address on the card MUST be your current shipping address, we may only ship a firearm back to the address on your ID)
  • All firearms will only be shipped back to the address on the ID
  • Must include your order number with the shipment
  • Send your firearm to: 2246 Park Place Suite B Minden Nevada, 89423
  • Any parts removed from your firearm during installation will be returned.



  • Firearms that are unsuitable will be returned and the account credited for installation charges less any return shipping costs. 
  • Not all firearms have tolerances compatible with BFSIII™ triggers. Any firearm sent in that is deemed incompatible will be returned and the account credited for installation charges less any return shipping costs. 
  • Alaska residents will need to pay a bit extra for shipping.  (Cost to be determined at the time it is shipped back and a credit card number will be needed at that time.) 
  • BFSIII™ is NOT for civilian sales in CA, CT, DC, FL, HI, IA, MD, NJ, NY, RI, and WA 
  • Only for use in pistols in Delaware
  • NO firearms without a serial number
  • For NFA items we recommend submitting a Form 5. A copy of your stamp must be included with shipment


AR Platform Exclusions:

  • Only the built Lower Receiver is to be sent in.
  • No 80% lowers, No polymer lowers, No Carbon lowers
  • No Sig Sauer MPX, MCX, or Pistol Caliber firearms
  • Lower must be built out with receiver extension, buffer spring, grip, takedown pin, and pivot pin assemblies.  If it is sent with a trigger group in it, any takeoff parts will be shipped back
  • Trigger pin size is .154"
  • All testing will be in 5.56 NATO or .308 WIN


Triggers for All Other Firearm Platforms

  • Full Firearm must be sent in
  • Magazine must be sent in with the firearm or installation service may be cancelled
  • Firearm must be in serviceable condition
  • Removal of accessories and optics is advised
  • The HK-C1 requires parts from the original trigger pack, the original trigger pack must be sent in with the firearm.
  • The firearm sent in must match the trigger installation service purchased, see list below. If you have a question about compatibility please call our customer service line, we are available to answer your questions 9am-4pm PST Mon.-Fri. Phone: 775-783-4313


*Compatible Firearms List

BFSIII AR-C1 (Curved Trigger)

MILSPEC AR Platforms

BFSIII AR-S1 (Straight Trigger)

MILSPEC AR Platforms


Bushmaster® ACR® Platform


AK platforms stamped or milled receivers in standard calibers 7.62x39, 5.45x39, 5.56 NATO

No Underfolding stocks or 12-gauge platforms or Arsenal firearms


AK platforms stamped or milled receivers in 9mm

No Underfolding stocks


B&T APC9, APC45, and GMH9


CZ Scorpions


HK91, 93, MP5 clones and variants






⚠️WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, go to -