FN America Auto Sear Assembly
Click to see full view
FN America
Overview
The FN America Auto Sear Assembly is a critical component designed for the AR-15 platform, enabling semi-automatic and fully automatic fire modes. This assembly provides a reliable interface for the trigger to engage the sear, essentially controlling the firing mechanism's operation. While primarily utilized in specialized builds, it is often found in configurations aimed at competitive shooting or tactical applications.
Specifications
Build history on GunPartPicker
Builders on GunPartPicker first added the FN America Auto Sear Assembly to a build in May 2026.
Availability is good: it was in stock at one retailer or another nearly every day in August 2026, and today the one retailer we track has it in stock. Prices barely moved in August 2026, holding around $152.89, so there haven't been real sales lately. Buying today, the lowest price is $152.89 at Primary Arms, which matches the best price we saw in August.
Updated · from real builds on GunPartPicker · Prices checked · refreshed daily across 31 retailers
Not sure which trigger to pick?
We ranked every trigger by how often it shows up in real builds on GunPartPicker.
Read the guide: AR-15 Trigger Popularity Report →Frequently Built With
Popular alongside triggers on GunPartPicker
Aero Precision Stripped M4E1 AR-15 Lower Receiver - Special Edition - Freedom
Bravo Company Manufacturing 5.56 NATO Mid-Length Bhf AR-15 Barreled Upper - MCMR-15 - 16"
Magpul AR-15 MOE Stock Collapsible Mil-Spec Black
Wilson Combat AR-15 Starburst Gunfighter Pistol Grip Black
Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers
Bravo Company M16 Bolt Carrier Group Black
No reviews yet. Be the first to review this product!