Binary Firing System™ Trigger Installation Service

Binary Firing System™ Trigger Installation Service


The Binary Firing System™ trigger installation service.



The Installation service includes installation performed by a Franklin Armory® Certified Armorer, test firing, and return shipping. Purchase the installation service and follow the instructions below to send in your BFSIII™ and your compatible firearm*.

Standard turnaround time is 2+ weeks



  • Must include legible scan of State ID or driver’s license
  • All firearms will only be shipped back to the address on the ID
  • The trigger sent back must be compatible* with the firearm shipped
  • Please 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


AR Platform Exclusions:

  • Only the Lower Receiver is to be sent in.
  • No 80% lowers, No polymer lowers, No Carbon lowers
  • No firearms without a serial number
  • No Sig Sauer MPX, MCX, or AR9 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
  • No Firearms without a serial number
  • 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


 AK platforms stamped or milled receivers in 9mm

 No Underfolding stocks


 B&T APC9, APC45, and GMH9


 CZ Scorpion and variants


 HK91, 93, MP5 clones and variants

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LUKE 22:36 "But now if you have a purse, take it, and also a bag; and if you don't have a sword, sell your cloak and buy one".


⚠️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 -