Patriot Ordnance Factory Single Stage Drop‑In Trigger – 3.5 lb Pull, Straight, KNS Pins Included (00858)

• Single stage drop-in trigger system with straight trigger shoe design
• 3.5 pound pull weight provides lighter trigger press for precision shooting
• Pre-assembled in hard coat anodized aluminum housing for drop-in installation
• Includes trigger, disconnect, hammer, and KNS pins as listed
• Nitride heat-treated A2 steel components rated to 70 Rockwell case hardness
• UPC 847313008589 identifies Patriot Ordnance Factory drop-in trigger system model 00858

The Patriot Ordnance Factory Drop-In Trigger System Straight 3.5 Pound Pull Weight is a drop-in trigger designed for AR-platform rifle fire control upgrades.

This single-stage trigger system provides a fixed 3.5 pound pull weight and is housed in a hardcoat anodized aluminum module with integrated urethane feet. The Patriot Ordnance Factory drop-in trigger system includes the trigger, disconnect, hammer, and KNS pins as specified. Components are machined from A2 steel and treated with a nitride heat process to a 70 Rockwell case hardness, offering a defined material property and corrosion resistance. In standard configurations, the pre-assembled cassette format supports straightforward installation without adjustment. This trigger assembly is used for range use, hunting setups, and general rifle configurations where a consistent single-stage pull is required. The black finish and contained housing define its interface and installation format.