KNS Hammer and Trigger Pin 2nd Generation, 2nd Modification Non Rotating AR-15 Stainless Steel

The KNS Precision 2nd Gen Non-Rotating AR-15 Hammer & Trigger Pin Set is built for shooters who demand reliability under serious use. Whether you're running suppressed fire, pushing high round counts, or just tired of pins creeping out of spec, KNS pins solve a real problem: standard pins can walk during firing. These stainless steel pins won't rotate, keeping your hammer and trigger assembly locked in place shot after shot, in both semi-auto and full-auto platforms.

KNS engineered these pins to handle the sustained impact and vibration of 9mm, .223, and 7.62mm suppressed firearms—environments where standard hardware often fails. The 2nd Gen design represents the company's latest refinement for durability and consistency. Stainless construction resists corrosion, while black variants receive a black nitride treatment for added wear resistance; other finishes are DuraCoated. The pins are manufactured to the strongest standard KNS can produce, giving you confidence that your trigger control and hammer function remain true through extended shooting sessions.

Installation is straightforward: these drop in place of your factory pins. The recommended torque spec is 8 inch-pounds, with a maximum safe limit of 11 inch-pounds. Whether you're building a new upper or upgrading an existing AR-15 or M16 platform, this is the kind of no-nonsense upgrade that prevents headaches in the field or at the range.

Key Features

• Non-rotating design prevents pins from walking during firing
• Stainless steel construction resists corrosion
• Rated for suppressed semi-auto and full-auto fire in 9mm, .223, and 7.62mm
• Black nitride or DuraCoat finish options for added durability
• 8 inch-pound recommended torque; 11 inch-pound maximum
• Direct drop-in replacement for standard AR-15 and M16 pins

Specifications

Frequently Asked Questions

Will these pins work with my AR-15?

Yes. The KNS Precision 2nd Gen pins are a direct drop-in replacement for standard AR-15 hammer and trigger pins. They're also compatible with M16 platforms.

Are these pins designed for suppressed firearms?

Yes. KNS engineered these pins specifically to withstand the impact and vibration of suppressed fire in 9mm, .223, and 7.62mm calibers, as well as semi-auto and full-auto operation.

What does "non-rotating" mean?

The non-rotating design prevents the pins from turning or walking out of position during firing. This keeps your hammer and trigger assembly locked in proper alignment through extended shooting sessions.

What torque should I use when installing?

KNS recommends an 8 inch-pound torque spec, with a maximum safe limit of 11 inch-pounds.