This low cost Lower Parts Kit excludes the most commonly upgraded items. All parts are made to standard military specs.

Bolt Catch
Bolt Catch Plunger
Bolt Catch Spring
Buffer Retainer
Buffer Retainer Spring
Magazine Catch
Magazine Catch Button
Magazine Catch Spring
Pistol Grip Lock Washer

Pistol Grip Screw
Pivot Pin
Pivot Pin Detent
Pivot Pin Detent Spring
Selector Detent
Selector Detent Spring
Takedown Pin
Takedown Pin Detent
Takedown Pin Detent Spring

Does not include: Trigger assembly, trigger guard and pistol grip.