The Armaspec stainless steel pin set for Glock Gen 1-3 (brand part no. ARM142-SS) replaces a pistol’s factory polymer pins with machined stainless steel for shooters who want a stronger, more corrosion-resistant frame. The three-pin set includes a trigger pin, a locking block pin, and a full-length third-generation-style ejector housing pin, covering the pins most prone to wear on a high-round-count Glock. Stainless steel holds up better than polymer under repeated slide cycling and resists the corrosion that can eventually cause factory pins to bind or wear oval. It’s a simple, inexpensive upgrade for competition shooters and daily carry owners looking to tighten up an older or heavily used pistol.

Key Specifications

• Machined from stainless steel for added strength over factory polymer pins.
• Fits Glock Gen 1-3 models including the 17, 19, 20, 21, 22, 23, 26, 27, 34, 35, 37, and 38.
• Includes a trigger pin sized to replace the factory polymer trigger pin.
• Includes a locking block pin for the frame’s locking block assembly.
• Includes a full-length ejector housing pin built to third-generation specifications.

Frequently Asked Questions

Does this pin set fit the Glock 36? No, the Glock 36’s single-stack frame uses different pin dimensions than the Gen 1-3 models this set covers.

Why upgrade from factory polymer pins? Stainless steel pins resist wear and corrosion better than polymer over a high round count, helping keep the frame’s fit tighter over time.

Buy the Armaspec Stainless Steel Pin Set for Glock Gen 1-3

Tighten up a well-used Glock frame with a durable stainless steel pin upgrade. See more from Armaspec in our small Glock parts category, ready to ship fast from our Lubbock, Texas gun shop.