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CMMG
A reliable firing pin is one of the most critical components in your AR-15, and the CMMG 55BA41C Firing Pin for .223 Rem/5.56mm is engineered to keep your rifle running hard. Whether you're a competition shooter, precision hunter, or range regular, this silver steel firing pin delivers the consistent ignition your rounds demand. CMMG has spent over two decades perfecting AR platform parts and rifles, and this component reflects that deep expertise—it's the kind of part you install and forget about, knowing it'll work every single time.
Firing pins wear. Whether it's from thousands of rounds downrange or just the accumulated hammer strikes of regular shooting, eventually every pin needs replacing. The CMMG 55BA41C is built to handle standard .223 Rem and 5.56mm ammunition in your AR-15 configuration, so when yours shows signs of wear—light primer strikes, inconsistent ignition, or failure to fire on good ammunition—you'll have a straightforward drop-in replacement ready to go. Silver steel construction balances durability with the precision tolerances your bolt carrier group demands.
Installation is straightforward if you're comfortable with basic AR-15 maintenance; if not, your gunsmith can handle it in minutes. Keep a spare on hand, especially if you're a high-volume shooter or rely on your rifle for hunting. It's cheap insurance against downtime.
| Brand | CMMG |
| Model | 55BA41C |
| Caliber Compatibility | .223 Rem / 5.56mm |
| Firearm Platform | AR-15 |
| Material | Silver Steel |
Yes—the CMMG 55BA41C is designed to fit standard AR-15 bolts for .223 Rem and 5.56mm ammunition. If you're running a different caliber or platform (like AR-10 in .308), verify compatibility before purchase.
Signs of a worn or damaged firing pin include light primer strikes, failure to fire on quality ammunition, or inconsistent ignition. If you're experiencing these symptoms and rule out other causes, a fresh firing pin is often the fix.
The CMMG 55BA41C is designed as a replacement component for AR-15 bolt carriers. Installation is straightforward for anyone comfortable with basic AR maintenance, but if you're unsure, a gunsmith can install it quickly.
CMMG
A reliable firing pin is one of the most critical components in your AR-15, and the CMMG 55BA41C Firing Pin for .223 Rem/5.56mm is engineered to keep your rifle running hard. Whether you're a competition shooter, precision hunter, or range regular, this silver steel firing pin delivers the consistent ignition your rounds demand. CMMG has spent over two decades perfecting AR platform parts and rifles, and this component reflects that deep expertise—it's the kind of part you install and forget about, knowing it'll work every single time.
Firing pins wear. Whether it's from thousands of rounds downrange or just the accumulated hammer strikes of regular shooting, eventually every pin needs replacing. The CMMG 55BA41C is built to handle standard .223 Rem and 5.56mm ammunition in your AR-15 configuration, so when yours shows signs of wear—light primer strikes, inconsistent ignition, or failure to fire on good ammunition—you'll have a straightforward drop-in replacement ready to go. Silver steel construction balances durability with the precision tolerances your bolt carrier group demands.
Installation is straightforward if you're comfortable with basic AR-15 maintenance; if not, your gunsmith can handle it in minutes. Keep a spare on hand, especially if you're a high-volume shooter or rely on your rifle for hunting. It's cheap insurance against downtime.
| Brand | CMMG |
| Model | 55BA41C |
| Caliber Compatibility | .223 Rem / 5.56mm |
| Firearm Platform | AR-15 |
| Material | Silver Steel |
Yes—the CMMG 55BA41C is designed to fit standard AR-15 bolts for .223 Rem and 5.56mm ammunition. If you're running a different caliber or platform (like AR-10 in .308), verify compatibility before purchase.
Signs of a worn or damaged firing pin include light primer strikes, failure to fire on quality ammunition, or inconsistent ignition. If you're experiencing these symptoms and rule out other causes, a fresh firing pin is often the fix.
The CMMG 55BA41C is designed as a replacement component for AR-15 bolt carriers. Installation is straightforward for anyone comfortable with basic AR maintenance, but if you're unsure, a gunsmith can install it quickly.
