Bump Fire Patent

US PATENT US #8,127,658 B1

In use, the user generates a forward activation force that urges the firing unit forwardly so that the trigger collides with the stabilized finger, stimulating the first round of ammunition in the receiver. A recoil force from the discharging ammunition pushes the firing unit rearwardly so that the trigger separates from the stabilized finger. The intensity of the forward activation force can be varied by the user on-the-fly to proportionally change the firing tempo.

All Patents

Pursuant to 35 USC 287(a), notice is hereby provided by way of this virtual patent mark that the above patents and/or applications apply to the identified products as shown. Please Email Customer Service for all inquiries.

  • SSAK-47®XRS
  • US 6101918
  • US 8127658
  • US 8176835
  • US 8356542
  • US 8371208
  • US 8474169
  • US 8607687
  • US D700943
  •  
  •  
  • SSAI-MC™
  • US 6101918
  • US 8127658
  • US 8176835
  • US 8356542
  • US 8371208
  • US 8474169
  • US 8607687
  • US D710477
  • SFS-BFR™
  • US 6101918
  • US 8127658
  • US 8176835
  • US 8356542
  • US 8371208
  • US 8448562
  • US 8474169
  • US 8607687
  • US 8806791
  • US D701281
Interface Block: US 8448562