Gun Nuts® Pro Line Fire Control Group

Mil-spec fitment. Improved trigger feel.
The Pro Line FCG provides your AR with the perfect, all-in-one trigger upgrade. Featuring standard pin and receiver fitment, this 100% U.S.-made fire control group sports.
The precision-machined, perfectly cut trigger, hammer hook, disconnector, and sear work together to guarantee your AR provides a buttery smooth trigger pull with virtually no creep nor overtravel.
Compatible with all standard parts kits and AR-15 lower receivers.
Gun Nuts Pro Line FCG: What’s Included

Hammer
Trigger
Disconnector
Disconnector spring
Hammer Spring
Trigger Spring
Hammer Pin
Trigger Pin

Installation Instructions
Follow our step-by-step instructions to install the Pro Line Fire Control Group in as little as 10 minutes!

WARNING: Handling firearms parts and accessories can expose you to lead and other petroleum products known to the State of California to cause cancer and reproductive harm. For more information go to: www.P65Warnings.ca.gov

Shipping Restrictions
Shipping of various parts and/or accessories are prohibited to states and locales (ie New Jersey, California, New York, etc…) with restrictions against certain parts and/or accessories or “assault weapons” (i.e. states with high-capacity magazine restrictions, manufacturing of semi-automatic weapons, etc..). It is your responsibility to be aware of your local firearms laws before purchasing from our website or machining a firearm. We try our best to keep our shipping page current, but laws change daily.

GunBuilders.com only ships within the United States. Federal legislation dictates we cannot ship our products internationally.