Upgrade Reliability with the NQI Black Nitride 4 Pin Oversized Anti-Walk Set

Take control of your Polymer80 build with the NQI Black Nitride 4 Pin Set, featuring oversized, dimpled, and chamfered steel pins built for strength, fitment, and long term reliability. Made from rugged 4140 steel and finished with a black nitride coating, this 4 piece set is designed to replace weak or worn out stock pins — and prevent pin walk under pressure.

Perfect for PF940C and PF940v2 frames, these pins are oversized by design to give a tighter fit and better retention. Whether you’re a builder upgrading your internals or replacing lost or damaged stock parts, these pins give you peace of mind and better performance.

Unlike standard parts, the anti-walk oversized design eliminates play and shifting during recoil, while the dimpled surfaces make alignment easier. This is a direct fit solution that works with all Polymer80 platforms below and pairs well with our custom 17-4 stainless front and rear rails.

🧰 What’s Included (4-Piece Kit)

🔩 Dimpled Trigger Pin – Black, oversized, chamfered 🔩 Dimpled Locking Block Pin – Black, oversized,
chamfered
🔩 Dimpled LBRS Front Pin – Raw stainless, oversized, chamfered
🔩 Dimpled Trigger Mechanism Housing Pin – Black, oversized, chamfered

🔥 Key Benefits

✅ 100% 4140 steel construction – won’t bend, crack or break
✅ Black nitride finish – improves corrosion resistance & looks sharp
✅ Oversized & chamfered – prevents pin walk & ensures tight fit
✅ Compatible with PF940C & PF940v2 frames
✅ Fits GLOCK models: 17, 19, 22, 23, 24, 26, 27, 30, 31, 32, 33, 34, 35
✅ No interference with holstering or EDC
✅ Pairs well with NQI 17-4 stainless rail systems