AT3™ Pro-Builder™ AR-15 Lower Parts Kit - No Grip or Trigger Assembly

Perfect Lower Parts Kit for the Premium Builds

This quality lower parts kit excludes the two most commonly upgraded components – the grip and the trigger assembly (fire control group).

  The kit contains quality, mil-spec parts and provides you with the flexibility to spend money on the parts you want – and none of the extras that will sit in your toolbox.

New Color Options!

We’ve added the option to get a Pro-Builder kit with all the parts you’ll see outside your gun in matching Cerakote! We’ve included a handy guide so you can make sure you’re getting the right color for your build.

Cerakote Finishes

• Flat Dark Earth: H-267 Magpul® Flat Dark Earth
• OD Green: H-232 Magpul® OD Green
• Pink: H-224 SIG™ Pink
• Red: H-167 USMC Red
• Blue: H-171 NRA Blue
• Burnt Bronze: H-148 Burnt Bronze
• Tungsten: H-237 Tungsten
• Titanium: H-170 Titanium

American Made Quality

• All parts meet or exceed military specifications (Mil Spec)
• Components are 100% Made in the USA
• Quality packaging keeps components protected and organized

This Kit Includes:

• Bolt catch
• Bolt catch plunger
• Bolt catch roll pin
• Bolt catch spring
• Buffer retainer
• Buffer retainer spring
• Magazine catch
• Magazine catch button
• Magazine catch spring
• Pivot pin
• Pivot pin detent
• Pivot pin detent spring
• Selector
• Selector detent
• Selector detent spring
• Takedown pin
• Takedown pin detent
• Takedown pin detent spring
• Pistol grip screw and lock washer
• Detailed parts diagram included for quick and easy part identification