CMMG Lower Parts Kit – AR-15 Lower Pins & Springs

The CMMG Lower Parts Kit supplies replacement lower pins and springs for AR-15 lower receivers. It consolidates common small parts used in lower-receiver maintenance and repair. All listed components are steel and are stated to meet or exceed Mil‑Spec standards.

Key Specifications

• The kit is compatible with AR-15/M16/M4 platforms.
• All components are made from steel.
• The package dimensions are 0.60 x 4.15 x 6.10 inches.
• The overall length measures 6.1000 inches.
• The width measures 4.1500 inches.
• The height measures 0.6000 inches.
• Includes hammer and trigger springs, hammer and trigger pins, safety selector detent and spring, buffer retainer and spring, trigger guard roll pin, takedown detents and springs, disconnector spring, bolt catch roll pin, bolt catch spring and plunger.
• The kit is classified as a Spring Kit / Lower Parts Kit.
• Finish/size designation is AR-15.
• All parts are stated to meet or exceed Mil‑Spec.

Keep this CMMG Lower Parts Kit on hand for routine maintenance, repairs, or as spares during assembly. Its comprehensive selection of springs and pins simplifies lower-receiver work and helps reduce downtime when replacing common small parts.

Related Videos: