Recoil Technologies anti-walk pins are great for drop-in triggers; they replace the original hammer and trigger pins and are retained by special retaining for a positive lock. One side is flared and broached, and the other side is threaded for a screw. Fits small pin lowers (.154).
AR-15 XP Black Anti-Walk Trigger/Hammer Pins w/Thd Locking Patch SKU: 734 - AR15Xtreme
APS AEG Anti Rotation Pins for M4 / M16 Rifles (Color: Silver), Accessories & Parts, External Parts, M4 / M16 External Parts, M4/M16 Pins and Screws - Airsoft Superstore
AR-15 / AR-10 Parts and Accessories
AR-15/LR-308 Lower Parts Grips, Triggers, Kits & More
Grip/LPK Combo: Skeletonized Polymer Grip + Recoil Technologies
Strike Industries AR-15 Shift Pins (Color: Black), Accessories & Parts, Real Steel Parts, AR15 / AR10 - Airsoft Superstore
Trigger Upgrade Kit: Recoil Technologies Anti-Walk AR-15 M16 Receiver Pins Black + Geissele Automatics Single-Stage Precision (SSP) M4 Curve
Anodized Anti-Walk Pin Set For Sale
Rise Armament Anti-Walk Hammer, Trigger Pins AR-15
Trigger Upgrade Kit: Davidson Defense AR-15 3 lb Drop In Sierra
Frame Bundle: SCT Manufacturing Full Frame Assembly + NcSTAR Quick
JP silent Captured Spring Buffer Retainer And Spring
Davidson Defense Anti-Walk AR-15 M16 Receiver Pins Black