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
⚠ Notes & Disclaimer
- Some fitting may be required depending on your LPK and drilled holes* Professional installation recommended
- Not GLOCK®
✅ Buy now from No Quarter Innovations
SHIPPING RESTRICTIONS
This item is restricted from shipping to California, Colorado, Connecticut, Hawaii, Illinois, Maryland, New Jersey, New York, Oregon Rhode Island, Washington D.C, and the Pennsylvania cities of Philadelphia, York, and Reading.



