Wilson Combat AR-9 Firing Pin Spring, 9mm

The Wilson Combat AR-9 Firing Pin Spring (brand part no. TR-AR9FPS) is a replacement firing pin spring built for 9mm AR-pattern carbines. A weak or fatigued firing pin spring is a common cause of light strikes and failures to fire on a well-used AR-9 bolt, and this spring swaps in as a direct replacement.

Key Specifications

• Built specifically for 9mm AR-pattern (AR-9) carbines.
• Replaces a worn or fatigued factory firing pin spring.
• Addresses light strikes caused by a weak spring.
• A small, low-cost wear part worth keeping as a spare.
• Restores proper firing pin energy on a well-used bolt.

Frequently Asked Questions

What problem does a new firing pin spring fix? A weak or fatigued firing pin spring is a common cause of light primer strikes and failures to fire; replacing it restores proper firing pin energy.

What platform is this spring for? 9mm AR-pattern (AR-9) carbines.

Is this a difficult part to replace? No, it’s a simple spring swap during a routine bolt strip and clean.

Buy the Wilson Combat AR-9 Firing Pin Spring

Order the Wilson Combat AR-9 Firing Pin Spring through our Wilson Combat lineup at Schaefer Defense and we will ship it fast, fully insured, from our Lubbock, TX gun shop, along with more rifle parts.