Rubber City Armory Stainless Steel AR-15 Firing Pin - Nitride

Manufactured by Rubber City Armory
SKU: 556-FP
MPN: 556-FP
Manufactured by Rubber City Armory
2 Reviews

Out of Stock



The Rubber City AR-15 Firing Pin is durable and reliable. This Rubber City firing pin is optimized for use in any standard AR-15 or M-16. It is specifically designed to handle consistent use and provide strength and longevity that exceeds the tolerances of economy-grade pins. Its 17-4 stainless steel construction ensures that it is durable for the competition shooter and hunter. It boasts a black nitride finish for high lubricity and ease of cleaning. The AR15 Firing Pin by Rubber City is mil spec dimensioned for easy drop in installation providing a precise, tight fit to prevent misfires and offers the confidence that your rifle will fire every time by providing a solid primer strike. This firing pin is engineered for a long, reliable service life and is a great option for the shooter looking to upgrade their current rifle with a high-quality firing pin. The firing pin is subject to Rubber City Armory’s revolutionary treatment eliminating the need for excessive oil or grease on tactical components for the life of the weapon. All of their high performance parts go through a rigorous BlackNitride+ process producing the highest quality parts. 

  • Manufactured by Rubber City Armory
  • 17-4 Stainless steel construction
  • Black nitride finish
  • Fits any standard AR-15 or M16
  • Heat treated to 42-45RC
  • Functions with all RCA bolt calibers
See More


BrandRubber City Armory
Caliber Gauge5.56 NATO
FinishBlack Nitride
MaterialSteel - 17-4 PH Stainless

Ratings & Reviews

2 reviews

  • 3 stars
  • 0 reviews
  • 2 stars
  • 0 reviews
  • 1 star
  • 0 reviews

Easy to clean

by -

Nitride makes it very easy to clean.

Great Nitride Firing Pin


I purchased this for my Midwest Industries enhanced Nitride 556 BCG (Radian Enhanced BCG w/ MI Logo) to replace the stock SS firing pin. I have around 700 rnds on this pin and so far it's worked flawlessly with my BCG & Timney 4lb skeltonized competition trigger. Good strikes and super easy to clean since it and bcg are all Nitride coated. Seems well machined and perfectly straight. Little bit pricey but I have no complaints.