The Timney 667S is a drop-in competition trigger designed for AR-15 platforms using small .156-inch trigger pins. It features a factory-set, non-adjustable 3 lb pull and a single-stage operating design. The trigger module uses the rifle’s original hammer and trigger pins, with a proprietary design intended to prevent pin rotation and walkout.

Key Specifications

• The trigger pull is set at 3 pounds and is not adjustable.
• The module is designed for AR-15 platforms with small .156-inch pins.
• The trigger uses a single-stage operating design.
• The product is a true drop-in trigger module.
• The housing is made from aluminum alloy, with steel components.
• The trigger is identified as a solid design.
• The listed finish is black and gold.
• The listed dimensions are 2.40 x 6.20 x 7.25 inches.
• The listed product weight is 0.5 pounds.
• The trigger is designed as an AR-15 accessory.

With a defined 3 lb pull, drop-in format, and small-pin compatibility, the Timney 667S provides a focused upgrade path for compatible AR-15 builds. Its non-adjustable configuration keeps the setup straightforward while the aluminum housing and steel components support a compact, purpose-built trigger assembly.