Scroll To Top

Patriot Defense | Optimized Hammer Springs

(3 reviews) Write a Review

12LB Optimized Hammer Spring

Patriot Defense | Optimized Hammer Springs for Tanfoglio

These fit full-size large and small frame competition pistols.

Pistols include both EAA Witness Series and IFG Defiant Series.


  • White, 10LB Optimized Hammer Spring, (Federal Only Primers)
  • Red, 12Lb Optimized Hammer Spring, (Federal Only Primers)
  • Blue, 13LB Optimized Hammer Spring
  • Yellow, 14LB Optimized Hammer Spring
  • Pink, 15.5LB Optimized Hammer Spring
  • *NEW* 16.5 LB Optimized Hammer Spring


Note: These parts are recommended for competition handguns only.


EAA Witness Series: Stock 2, Stock 3, Limited, Limited Custom, Gold Team, Limited Pro, Hunter, Limited Custom Xtreme, Domina Xtreme

IFG Defiant Series: Limited Pro, Stock 1, Stock Master, Limited Master


 Export - No license Required

3 Reviews Hide Reviews Show Reviews

  • 5
    Hammer spring

    Posted by Charlie Wright on Apr 30th 2022

    The new heavier hammer spring that Joe/Joanna recommended, worked great to prevent light primer strikes, which were caused but todays harder primers.

  • 5
    Great springs!

    Posted by Eugene on Mar 6th 2022

    Like these a little bit better than wolfe, that said it really just preference.

  • 5

    Posted by Wilfredo A Borges on Aug 26th 2020

    Not only their product line is amazing. if something happen they got your back no questions asked. Use Patriot for all my Tanfoglio needs