CMMG167514261
Cmmg M16/Ar Firing Pin Retainer$0.89
Availability: In Stock
The CMMG Mk3 firing pin retainer is a small but critical component for maintaining your AR platform rifle. If you're running a CMMG Mk3 or LR-308 bolt, this steel retainer keeps the firing pin secure and functioning reliably shot after shot. Whether you're building, upgrading, or maintaining an AR, having the correct OEM firing pin retainer ensures your bolt assembly works as designed.
CMMG has been refining AR technology since 2002, and attention to detail in parts like this retainer reflects that expertise. A properly functioning firing pin retainer is easy to overlook until you need it—but it's one of those components where the right fit matters for both reliability and safety on the range or in the field.
This is a straightforward replacement or spare part for shooters who work on their own rifles, or a necessary component if you're assembling a bolt from individual parts. Keep one on hand as a backup, or grab it when you're doing a bolt rebuild.
| Brand | CMMG |
| Product Type | Firing Pin Retainer |
| Material | Steel |
| Compatibility | CMMG Mk3 and LR-308 bolts |
This retainer is designed for CMMG Mk3 bolts and LR-308 bolt assemblies. Make sure your bolt matches before purchasing.
Yes, this is a genuine CMMG component manufactured to their specifications for their bolt assemblies.
You'll need a firing pin retainer when assembling a bolt from individual components, replacing a damaged retainer, or rebuilding a bolt assembly. It's also smart to keep a spare on hand for maintenance or troubleshooting.
SKU: 152744679 • Width: 4in • Height: 0.25in • Depth: 6.25in • Weight: 0.06oz
Availability: In Stock
The CMMG Mk3 firing pin retainer is a small but critical component for maintaining your AR platform rifle. If you're running a CMMG Mk3 or LR-308 bolt, this steel retainer keeps the firing pin secure and functioning reliably shot after shot. Whether you're building, upgrading, or maintaining an AR, having the correct OEM firing pin retainer ensures your bolt assembly works as designed.
CMMG has been refining AR technology since 2002, and attention to detail in parts like this retainer reflects that expertise. A properly functioning firing pin retainer is easy to overlook until you need it—but it's one of those components where the right fit matters for both reliability and safety on the range or in the field.
This is a straightforward replacement or spare part for shooters who work on their own rifles, or a necessary component if you're assembling a bolt from individual parts. Keep one on hand as a backup, or grab it when you're doing a bolt rebuild.
| Brand | CMMG |
| Product Type | Firing Pin Retainer |
| Material | Steel |
| Compatibility | CMMG Mk3 and LR-308 bolts |
This retainer is designed for CMMG Mk3 bolts and LR-308 bolt assemblies. Make sure your bolt matches before purchasing.
Yes, this is a genuine CMMG component manufactured to their specifications for their bolt assemblies.
You'll need a firing pin retainer when assembling a bolt from individual components, replacing a damaged retainer, or rebuilding a bolt assembly. It's also smart to keep a spare on hand for maintenance or troubleshooting.
SKU: 152744679 • Width: 4in • Height: 0.25in • Depth: 6.25in • Weight: 0.06oz