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Fortis Manufacturing Enhanced Detent and Spring Kit
$33.99 $26.99 Save 21%
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Most Helpful Positive Review Small unexpected parts like make a big difference in reliability!
This is one of a very few select products made with stainless rather than unknown metal or milspec. These parts make a big difference in the ultimate reliability and function of your platform. There are a couple others of similar quality and composition, yet I've found this to be the ones I use in my loved ones builds and recommend to everyone. Actually I'd say even upgrade and get their whole LPK and since the bolt catch is THE most common part to fail you will be upgrading that as well as a few of their excellent product's such as the selector too. This is one of my standard go to items for...
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A+ Spring Kit

by Harry O, Verified Owner from PA, United States Written on June 14, 2026
Better than OEM, stainless steel, inexpensive, why not?
Pros:
  • Corrosion resistant, look Pro!
Cons:
  • Nope/nothing
Would recommend: Yes
Was it helpful to you? Yes | No

Quality detents and springs

by johnchip, Verified Owner from CT, United States Written on October 11, 2025
I bought this enhanced detent and spring kit from Fortis for a new duty grade 300 blackout build. What a difference it makes to have quality springs and detents. I bought another pack just in case I want to do the same thing in the future for another build. Honestly speaking though these should be used in every build I think it's worth it. I highly recommend them and everybody should have at least one pack on deck.
Would recommend: Yes
Was it helpful to you? Yes | No

Fortis Detents & Spring Kit

by johnchip, Verified Owner from CT, United States Written on September 27, 2025
I used this kit to build out a new lower and quality parts like these make quite a difference. I am going to get another kit to keep in my spare parts box. Highly recommend.
Would recommend: Yes
Was it helpful to you? Yes | No

good parts

by Jimmy the Gent, Verified Owner from NM, United States Written on March 27, 2025
Solid parts, better than some of the other fancy brands I had ordered, a must have for spares or repairs, get yourself at least one set
Would recommend: Yes
Was it helpful to you? Yes | No

Great Quality

by JTL, Verified Owner from GA, United States Written on August 9, 2024
This set is one of the best ive worked with. The quality of this product is noticeable compared to cheaper options. Ill be using this for all my builds from now on.
Would recommend: Yes
Was it helpful to you? Yes | No

Spring kit

by E, Verified Owner from AZ, United States Written on July 6, 2024
This is spring set is the best i’ve used. Well made and highly recommended
Would recommend: Yes
Was it helpful to you? Yes | No

best indent pins ive ever used

by Landon Leyda, Verified Owner from OH, United States Written on August 27, 2023
These things are strong and will last you a life time, wouldn’t use any other pins after this. I used this on a 9mm build and so far it’s the best gun I have, everything put into it works phenomenal. Now gonna order this for my ar15 build!
Pros:
  • Durability
  • well made
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.