CMMG AR15 Receiver Pivot/Takedown Detent

The CMMG AR15 Receiver Pivot/Takedown Detent is a critical small part that locks your AR-15's front pivot pin and rear takedown pin in place. These detents work with their corresponding springs to provide positive retention and prevent pin migration during normal operation. This is an essential replacement part for builders completing a lower receiver or for shooters who've lost or damaged an original detent during maintenance or disassembly.

Manufactured from hardened steel with a corrosion-resistant finish, this detent is dimensioned to mil-spec standards for reliable function in any AR-15 lower receiver. Installation requires careful work with a detent spring and pin—these small parts are under tension and can launch during assembly if not controlled properly. Take your time and use proper technique to avoid losing parts.

• Part Type: Pivot/Takedown Pin Detent
• Compatible Firearms: AR-15 Lower Receivers (Mil-Spec)
• Material: Hardened Steel
• Finish: Corrosion-Resistant
• Installation: Drop-In (caution required—parts under spring tension)
• Includes: (1) Detent