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Questions & Answers
154 diameter for mil-spec trigger? Expert Answer

This item does come with a .1555 diameter pin.

by Tiffany S., Gear Expert, May 31, 2019
Customer Reviews
Helpful Positive Review
Know which diameter pin you need! by Fmark, December 15, 2019
I had no clue whether .1555 or .154 was what I needed, so I bought .1555 pins. Wrong decision. They would not fit in a new high-end lower, not even close. I was able to put them into a Sig MPX and wow did it tighten up the trigger system. Also, high ...
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2/2 found this helpful
Most Recent Reviews
aluminum reciever why not? by Txduckgun, Verified Owner, June 26, 2024
I use KNS anti-rotation pins on every rifle build. AR platform rifles have an aluminum reciever and steel pins. Something is going to wear eventually. Why not minimize the potential for failure? Its inexpensive insurance against walking pins and oblo...
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Most Recent Reviews
VERY easy install! by jayD, Verified Owner, July 30, 2018
Couldn’t possibly have been simpler to install these pins! Make sure you have a proper punch and small rubber mallet. Highly recommend this product and will be buying more of these for future AR builds.
0/1 found this helpful
Most Recent Reviews
Use KNS on all my builds. by Jason G., Verified Owner, March 12, 2021
I’ve used KNS pins on all my builds. I always make sure I have a set of .155 and .154 pin sets on hand. I’ve found many lowers accept the .155 pins with no drama. Even quality parts from Aero and Noveske have varied between .154 and .155.
Most Recent Reviews
very tight fit by Heed, Verified Owner, February 29, 2020
This is a very tight fit, but it really stiffens up the trigger. I'm not going to order this size anymore, but these are the best pins i've used. The difference in trigger feel is worth it alone. I can't believe that people rely on the standard de...
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Most Recent Reviews
Excellent Product by Brian, August 6, 2018
Easy Install everything went together perfectly. Used this with a RA-140 Trigger by putting in the KNS PINS and then releasing the set screws the trigger pull went from 4.5 to 4 lbs. happy with the product and took the weapon to the range and everyt...
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0/1 found this helpful
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Help support American manufacturing! Marked models of this product have gone through rigorous review and been certified by the manufacturer as Made in the USA.

Product Info for KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins

These KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins are the strongest pins on the market designed to withstand the intense impact of full and semi-auto 9mm, .223 and 7.62mm suppressed rounds. KNS Precision built these AR15 Lower Parts from stainless steel complete with special coatings to resist corrosion and abrasions. Each KNS Precision Gen 2 Mod 2 Rifle Pin Set is crafted with anti-creep retainers that prevent wear and damage to your valuable receiver. Installation tools are included, and you can add these pins to your build without modifying your weapon. Grab a KNS Precision Gen 2 Mod 2 Build-A-Kit today to maximize your weapon's efficiency and ensure it's functioning at its full potential.image

Specifications for KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins:

Manufacturer: KNS Precision
Fabric/Material: Steel
Additional Features: .1555 Diameter, Gen 2 Mod 2
Country of Origin: USA
Gun Model: M16, AR-15

Features of KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins:

  • Designed to withstand the high impact of full and semi-automatic 9mm, .223 and 7.62mm suppressed weapons
  • Stainless steel trigger & hammer pins are black nitride and color options are DuraCoated
  • End retainers are black nitrided
  • Special anti-creep retainers prevent wear on your AR-15/M-16 receiver
  • Pin installation tool & 2 Torx wrenches included. No modification to gun required

Package Contents:

  • KNS Precision AR15/M16 Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins

KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins Orderable Models

List of Orderable Models

  • KNS Precision AR15/M16 Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins .1555 Diameter-Black, NRTHPMOD2-1555-Black , MPN: KNS-BLK2 , UPC: 851876003172 , Code: 3GL-ATP-MDGN-NRTHPMOD2-1555-BLACK
  • KNS Precision AR15/M16 Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins .1555 Diameter-Dark Earth, NRTHPMOD2-1555DE , MPN: NRTHPMOD2-1555DE , UPC: 853906008201 , Code: 3GL-ATP-MDGN-NRTHPMOD2-1555DE

KNS Precision AR15/M16 .1555 Diameter Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins Unavailable & Discontinued Models

List of Unorderable Models

  • KNS Precision AR15/M16 Gen 2 MOD 2 Non-Rotate Trigger/Hammer Pins .1555 Diameter-OD Green, NRTHPMOD2-1555OD , MPN: NRTHPMOD2-1555OD , Code: 3GL-ATP-MDGN-NRTHPMOD2-1555OD
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