TacFire

Tacfire 5.56x45mm 10.5\" AR-15 Complete Upper Receiver with Bolt Carrier Group, Charging Handle, M-LOK Handguard - BU-556-10

All TacFire upper receivers
Tacfire 5.56x45mm 10.5\" AR-15 Complete Upper Receiver with Bolt Carrier Group, Charging Handle, M-LOK Handguard - BU-556-10 - Upper Receiver for AR-15 - view 1
Tacfire 5.56x45mm 10.5\" AR-15 Complete Upper Receiver with Bolt Carrier Group, Charging Handle, M-LOK Handguard - BU-556-10 - Upper Receiver for AR-15 - view 2
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TacFire

Overview

The Tacfire 5.56x45mm 10.5\" AR-15 Complete Upper Receiver with Bolt Carrier Group, Charging Handle, M-LOK Handguard - BU-556-10 is a upper receiver. Compare prices from multiple merchants and find the best deal.

Specifications

MPNBU-556-10
AssemblyComplete
Caliber5.56 NATO
PlatformAR-15
Barrel Length10.5

Available Merchants(5)

Prices checked

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Get an email if the price drops 10% or more.
Classic Firearms logo
Classic Firearms
Shipping varies
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In Stock
$300
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KY Gun Company logo
KY Gun Company
Flat rate shipping
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$312
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Optics Planet logo
Optics Planet
Free shipping
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$320
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Palmetto State Armory logo
Palmetto State Armory
Free shipping
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In Stock
$347
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BattleHawk Armory logo
BattleHawk Armory
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Out of Stock
$255
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Build history on GunPartPicker

Builders have been adding the Tacfire 5.56x45mm 10.5\" AR-15 Complete Upper Receiver with Bolt Carrier Group, Charging Handle, M-LOK Handguard - BU-556-10 to their builds on GunPartPicker since March 2026. All time, it ranks #391 of the 1,683 upper receivers builders have added.

Availability is good: it was in stock at one retailer or another nearly every day in September 2026, and today 4 of the 5 retailers we track have it in stock. The best price drifted down from $311.87 to $281.66 over September 2026 without a real sale. Buying today, the lowest price is $299.99 at Classic Firearms, above September's low of $279.49, so a better deal may come back.

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Check it against the live catalog:

Frequently Built With

The part most often added in each category by the builds that include this one

PSA AR-15 Complete Lower Magpul MOE EPT Edition - Flat Dark Earth, No Magazine

PSA AR-15 Complete Lower Magpul MOE EPT Edition - Flat Dark Earth, No Magazine

Lower Receiver$180in 33% of them
Rise Armament Super Sporting AR15/10 Single Stage Trigger - Flat - Dtom Special Edition

Rise Armament Super Sporting AR15/10 Single Stage Trigger - Flat - Dtom Special Edition

Trigger$108in 17% of them
Vortex Spitfire HD Gen II 5x Prism Scope - AR-BDC4 Reticle

Vortex Spitfire HD Gen II 5x Prism Scope - AR-BDC4 Reticle

Optic$449in 17% of them
Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers

Aero Precision AR-15 Breach Charging Handle Ambidextrous Small Levers

Charging Handle$69 · out of stockin 33% of them
Hogue OverMolded Collapsible Buttstock Mil-Spec - Olive Drab Green

Hogue OverMolded Collapsible Buttstock Mil-Spec - Olive Drab Green

Stock & Brace$59in 17% of them
PSA AR-15 Bolt Carrier Group 5.56 Full-Auto Nitride MPI - 516446953

PSA AR-15 Bolt Carrier Group 5.56 Full-Auto Nitride MPI - 516446953

Bolt Carrier Group$90in 17% of them

Build Configuration Breakdown

Aggregated and anonymized data showing how builders use this product

Gas System

50.3%
Mid-Length50.3%
Carbine25.7%
Pistol11.4%
Rifle11%
Blowback1.3%
Other0.3%

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