A lower parts kit is a key part to finishing your lower. It's one of the most important aspects of your AR-15 as far as quality is concerned. This lower parts kit offers all the parts needed to finish your stripped receiver. You'll also need an upper assembly to complete an AR-type rifle or pistol.
The premium lower parts kit comes with all the internal parts needed to finish your lower, from the pivot pin to the trigger, with this kit you're ready to complete your AR 15 build kit. This lower parts kit is different than our "Classic Lower Parts Kit" as this one comes with a MagPul pistol grip and enhanced polymer trigger guard for increased strength.
Need assistance? Here's an instructional guide for your LPK.
This Lower Parts Kit comes complete with:
- Hammer
- Pistol Grip
- Trigger
Pivot & Takedown
- Pivot Pin
- Pivot Pin Detent
- Pivot Pin Detent Spring
- Takedown Pin
- Takedown Pin Detent
- Takedown Pin Detent Spring
Bolt Grouping
- Bolt Catch
- Bolt Catch Plunger
- Bolt Catch Roll Pin
- Bolt Catch Spring
- Buffer Retainer
- Buffer Retainer Spring
Trigger & Hammer Assembly
- Hammer Pin
- Hammer Spring
- Trigger Pin
- Trigger Spring
- Disconnect
- Disconnect Spring
Magazine & Trigger Guard
- Magazine Catch
- Magazine Catch Spring
- Magazine Release Button
- Trigger Guard
- Trigger Guard Roll Pin
Safety Select & Pistol Grip Connect
- Safety Selector
- Selector Detent
- Selector Detent Spring
- Pistol Grip Lock Washer
- Pistol Grip Screw
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.
