TacFire Firing Pin — 5.56x45mm NATO, Hard Chrome Steel for AR-15/M16 (MAR120 | UPC 811261029477)

Restore reliable ignition and extend the service life of your bolt carrier group with the TacFire Firing Pin for AR-15/M16 platforms. Engineered for 5.56x45mm NATO / .223 Rem systems, this precision-machined pin features a hard chrome finish for superior wear resistance, corrosion protection, and slick, easy-to-clean surfaces. Whether you’re refreshing a high-round-count carbine or assembling a new upper, the TacFire MAR120 firing pin delivers consistent primer strikes and dependable performance.

Why Choose a Hard-Chrome Firing Pin?

• Enhanced Durability: Hard chrome plating resists peening and galling at high round counts—ideal for duty, range, and training rifles.

• Corrosion & Carbon Resistant: The smooth chrome surface shrugs off fouling and moisture, simplifying cleaning and long-term storage.

• Consistent Ignition: Tight dimensional control supports uniform protrusion and repeatable primer impact for fewer light-strike headaches.

• Drop-In Fit: Designed around mil-spec AR-15/M16 carriers and bolts for straightforward replacement—no fitting required on most rifles.

Key Features & Specs

• Model/Part: MAR120

• UPC: 811261029477

• Platform: AR-15 / M16 (5.56x45mm NATO / .223 Rem)

• Material: High-strength steel, hard chrome plated

• Function: Replacement firing pin for mil-spec bolt carrier groups

• Finish: Bright, low-friction chrome for easy wipe-down maintenance

Performance Benefits You’ll Notice

• Smoother Operation: Low-friction finish helps the pin glide within the bolt, contributing to a clean, consistent cycle.

• Reduced Maintenance Time: Carbon doesn’t cling as stubbornly to chrome—wipe, oil lightly, and get back to the line.

• Reliability Under Volume: Withstand heat and debris from carbine classes, suppressed shooting, and high-tempo drills.

Compatibility & Fit Notes

• BCG Standard: Fits most mil-spec AR-15/M16 5.56 bolt carrier groups.

• Caliber: Optimized for 5.56x45mm NATO / .223 Rem; works with many .223 Wylde setups using standard firing pin geometry.

• Check Your Bolt: Use with mil-spec bolt face and retaining pin. Not designed for 7.62x39, 6.5 Grendel, .308/AR-10, or other non-5.56-pattern carriers unless explicitly specified by the manufacturer.

Installation (Best Practices)

• Unload & Clear: Always verify the firearm is unloaded before maintenance.

• Drop-In Replacement: Remove firing pin retaining pin, extract old firing pin, insert TacFire MAR120, and re-install the retainer.

• Inspect Components: While you’re in the BCG, examine the cam pin, gas rings, extractor spring, and ejector for wear.

• Function Check: After reassembly, perform basic manual checks and confirm reliable ignition with your preferred ammunition at the range.

Ideal Use Cases

• Preventive Maintenance: Swap in a fresh, chrome-plated pin during routine BCG service intervals.

• High-Round-Count Rifles: Training carbines, patrol rifles, and competition uppers benefit from improved wear resistance.

• Spare Parts Kit: Keep one in your range bag or armorer’s kit for fast field replacement.

Care & Maintenance

• Wipe carbon from the chrome surface with a cloth and quality solvent.

• Inspect the tip for burrs, chips, or deformation; replace at the first sign of damage.

• Lightly oil before storage to maintain a moisture barrier inside the bolt channel.

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TacFire Firing Pin — 5.56x45mm NATO Hard Chrome Steel for AR-15/M16 (MAR120 | 811261029477): a tough, easy-to-clean, drop-in upgrade that restores confidence in your rifle’s ignition and keeps your BCG running strong.

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