Binary Firing System® Trigger Installation Service

Turnaround time currently 6+ weeks
Not for civilian sales in: CA, CT, DC, DE, FL, HI, IA, MD, NJ, NY, RI, and WA
Current Stock:
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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 6+ 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
  • The trigger sent back must be compatible* with the firearm shipped
  • Please include your order number with the shipment
  • Any parts removed from your firearm during installation will be returned.


Send your firearm to:


2246 Park Place Suite B

Minden Nevada, 89423


  • 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 and other non-contiguous United States 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, DE, FL, HI, IA, MD, NJ, NY, RI, and WA 
  • For NFA items we recommend submitting a Form 5. A copy of your stamp must be included with shipment


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 pistol caliber platforms
  • 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 may be cancelled
  • No Firearms without a serial number
  • Firearm must be in serviceable and clean 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

 BFSIII® 22-C1

 RUGER® 10/22® Trigger pack 


 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 AK 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


 Ruger® PC Carbine™ Trigger pack 9mm and .40 Cal