Timney 661S Competition Trigger — AR-15 Small-Pin 3 lb

Description

The Timney 661S Competition Trigger is a self-contained trigger module designed for small-pin AR-15 lowers. It provides a crisp, creep-free single-stage break with a non-adjustable 3 lb pull in a skeletonized, curved shoe. The module uses captive components in a lightweight aluminum-alloy housing and installs using your rifle’s original hammer and trigger pins for a straightforward fit. Where applicable, the hammer and EDM components are machined from tool steels to maintain consistent, reliable operation.

Key Specifications

• The trigger pull is 3 lb and is non-adjustable.
• The module is designed for small-pin (.156-inch) AR-15 lower assemblies.
• The trigger shoe is skeletonized and curved for a feel suited to precision and competition use.
• Construction combines steel and aluminum components for durability and light weight.
• The finish is Black/Gold.
• The module installs using your rifle’s original hammer/trigger pins with a design that reduces pin rotation and walkout.
• The hammer is wire-EDM machined from S7 tool steel and EDM components are cut from A2 tool steel.
• The trigger is a single-stage design intended to deliver a smooth, creep-free break.
• The module is stated to fit most AR-15 rifles that use small (.156-inch) trigger pins.

For competition and precision-oriented shooters seeking a repeatable, clean trigger break in a compact package, the Timney 661S offers a race-ready feel in a small-pin module. Its lightweight housing, tool-steel critical components, and skeletonized shoe make it a practical upgrade for shooters who want a crisp single-stage pull and straightforward installation without added adjustments.