Precision-machined components with mil-spec fitment.
The Pro Line Lower Parts Kit from Gun Nuts features OEM-spec components, proudly made in America with precision machining to guarantee reliable cycling with a perfect trigger pull and hammer reset.
Pair this LPK with a buffer assembly to complete your lower and make it ready for install with your upper receiver assembly!
Pro Line LPK: What's Included
- Hammer
- Pistol Grip
- Trigger
- Pivot Pin
- Pivot Pin Detent
- Pivot Pin Detent Spring
- Takedown Pin
- Takedown Pin Detent
- Takedown Pin Detent Spring
- Bolt Catch
- Bolt Catch Plunger
- Bolt Catch Roll Pin
- Bolt Catch Spring
- Buffer Retainer
- Buffer Retainer Spring
- Hammer Pin
- Hammer Spring
- Trigger Pin
- Trigger Spring
- Disconnect
- Disconnect Spring
- Magazine Catch
- Magazine Catch Spring
- Magazine Release Button
- Trigger Guard
- Trigger Guard Roll Pin
- Ambi Safety Selector
- Selector Detent
- Selector Detent Spring
- Pistol Grip Lock Washer
- Pistol Grip Screw
Installation Instructions
Follow our step-by-step instructions to install your Sporter Lower Parts Kit!
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 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.
