KE Arms Lower Receiver Parts Kit 1-50-01-543

Every part you need to assemble your bare lower receiver into a functional piece for your custom AR-15 or M4 build.

Trigger Guard and Pistol Grip

• Triggerguard assembly-Enhanced Polymer Winter Trigger Guard, secures with roll pin and set screw for easy installation (allen wrench not included)
• Triggerguard roll pin
• A2 Pistol grip-Injection Molded Glass Filled Nylon
• Pistol grip screw
• Grip screw lock washer-Stainless Steel

Fire Control Group

• Hammer- Investment Cast and Precision Machined Steel, Magnesium Phosphate Coating.
• Hammer Spring- Black Oxide Coated
• Trigger- Investment Cast and Precision Machined Steel, Magnesium Phosphate Coating.
• Trigger Spring- Black Oxide Coated
• Disconnector- Fine Blank and Precision Machined Black Oxide
• Disconnector Spring-Black Oxide Coated
• Safety selector- Investment Cast and Precision Machined Steel, Magnesium Phosphate Coating.
• Selector detent spring-Black Oxide Coated
• Safety selector detent-Melonite Coated Steel

Magazine Catch Assembly

• Magazine release button-Anodized Aluminum
• Magazine catch-Melonite Coated Steel
• Magazine catch spring-Black Oxide Coated

Buffer Retainer Assembly

• Buffer retainer-Melonite Coated Steel
• Buffer retainer spring-Black Oxide Coated

Bolt Catch Assembly

• Bolt catch- Investment Cast, Magnesium Phosphate Coating.
• Bolt catch plunger-Melonite Coated Steel
• Bolt catch spring-Black Oxide Coated
• Bolt catch roll pin

Take Down/Pivot Pin Assemblies

• Takedown pin detent springs (2)-Black Oxide Coated, longer than standard trim to length needed for your lower.
• Takedown pin detents (2)-Melonite Coated Steel
• Takedown pin-Melonite Coated Steel
• Pivot pin-Melonite Coated Steel