Skip to main content
We may get paid by partner for deals, including promoted items

Menu

Trending
Top Brands Palmetto State ArmoryHot Yeti CoolerDeal NatchezDeal SitkaDeal 5.11Sale Winter Clearance Amazon Pickleball Sale Amazon FitnessHot Stores
TacFire BU-300-8 AR-15 Complete Upper .300 AAC Blackout 8\" Barrel Black Finish by Tacfire -
15% off

Product Description

TacFire BU-300-8 AR-15 Complete Upper .300 AAC Blackout 8\" Barrel Black Finish

TacFire BU-300-8 AR-15 Complete Upper .300 AAC Blackout 8\" Barrel Black Finish

at Classic Firearms
Browse all Classic Firearms deals
$279.99 $329.99 15% Discount
You save $50.00
In Stock at Classic Firearms
Price checked 6 days ago
Buy Now at Classic Firearms
Secure checkout Easy returns
or compare prices
Amazon logo Amazon eBay logo eBay

Product Details

Brand Tacfire
MPN BU-300-8
Accessories Tacfire

More from Tacfire

Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
Tacfire AR-15 Upper Receiver with Dust Cover and Forward Assist - UP01-C Tacfire AR-15 Upper Receiver with Dust Cover and Forward Assist - UP01-C View Details
$64.65
Buy Now · $64.65
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
.750 Adjustable Steel Gas Block (Gen. 3) .750 Adjustable Steel Gas Block (Gen. 3) View Details
$26.57
Buy Now · $26.57
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
Tacfire .308 Compact Compensator 5/8x24 Thread Pitch - Stainless Steel - MZ1002-3SS-N Tacfire .308 Compact Compensator 5/8x24 Thread Pitch - Stainless Steel - MZ1002-3SS-N View Details
$21.37
Buy Now · $21.37
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
TacFire MZ1020SS Linear Compensator Stainless Steel with 1/2\"-28 tpi Threads, 2.05\" OAL & 0.87\" Diameter for 5.56x45mm NATO AR-15 TacFire MZ1020SS Linear Compensator Stainless Steel with 1/2\"-28 tpi Threads, 2.05\" OAL & 0.87\" Diameter for 5.56x45mm NATO AR-15 View Details
$18.57
Buy Now · $18.57
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
TacFire SL003B 2 To 1 Point Sling 30\"-40\" L Adjustable Double Bungee Black Nylon Webbing for Rifle TacFire SL003B 2 To 1 Point Sling 30\"-40\" L Adjustable Double Bungee Black Nylon Webbing for Rifle View Details
$16.48
Buy Now · $16.48
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
TacFire MZ1005N 6 Prong Flash Hider Black Nitride Steel with 1/2\"-28 tpi Threads & 2.22\" OAL for 5.56x45mm NATO AR-Platform TacFire MZ1005N 6 Prong Flash Hider Black Nitride Steel with 1/2\"-28 tpi Threads & 2.22\" OAL for 5.56x45mm NATO AR-Platform View Details
$16.29
Buy Now · $16.29
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
TacFire MAR124SET MLokQuick Detach Black Aluminum TacFire MAR124SET MLokQuick Detach Black Aluminum View Details
$9.39
Buy Now · $9.39
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
Tacfire TL009 AR15 Upper Receiver Vise Block Tacfire TL009 AR15 Upper Receiver Vise Block View Details
$7.93
Buy Now · $7.93
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
TacFire MAR108SS Anti-Walk Pin Set Silver Stainless Steel AR-15 TacFire MAR108SS Anti-Walk Pin Set Silver Stainless Steel AR-15 View Details
$8.99 $10.99
18% off
Buy Now · $8.99
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
Tacfire MAR105L 5\" PIC Rail M-Lok 11 Slots Tacfire MAR105L 5\" PIC Rail M-Lok 11 Slots View Details
$6.28
Buy Now · $6.28
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
TacFire BU45ACP10 45 ACP 10\" Black Nitride Barrel TacFire BU45ACP10 45 ACP 10\" Black Nitride Barrel View Details
$316.00
Buy Now · $316.00
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
TacFire IS012 Tactical Polymer Front and Rear Flip Up Sight Set, Dual Aperture, Picatinny Mount. TacFire IS012 Tactical Polymer Front and Rear Flip Up Sight Set, Dual Aperture, Picatinny Mount. View Details
$8.81
Buy Now · $8.81
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
TacFire PK45ACPLPK10 .45 ACP Pistol Kit TacFire PK45ACPLPK10 .45 ACP Pistol Kit View Details
$351.87
Buy Now · $351.87
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
TacFire Operator Stock, 6-Position with Recoil Pad, QD Attachments, Mil-Spec, Black - MAR156-O TacFire Operator Stock, 6-Position with Recoil Pad, QD Attachments, Mil-Spec, Black - MAR156-O View Details
$17.49
Buy Now · $17.49
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
TacFire SSPK45ACPLPK AR Build Kit Pistol 45 ACP AR-15 Black Nitride Steel 5/8\"-24 tpi TacFire SSPK45ACPLPK AR Build Kit Pistol 45 ACP AR-15 Black Nitride Steel 5/8\"-24 tpi View Details
$365.66
Buy Now · $365.66
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
Tacfire 9mm 7\" AR-15 Complete Upper Receiver with Bolt Carrier Group, Charging Handle, M-LOK Handguard - BU-9MM-7 Tacfire 9mm 7\" AR-15 Complete Upper Receiver with Bolt Carrier Group, Charging Handle, M-LOK Handguard - BU-9MM-7 View Details
$281.60
Buy Now · $281.60
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
Tacfire 5.56x45mm 7\" AR-15 Complete Upper Receiver with Bolt Carrier Group, Charging Handle, M-LOK Handguard - BU-556-7 Tacfire 5.56x45mm 7\" AR-15 Complete Upper Receiver with Bolt Carrier Group, Charging Handle, M-LOK Handguard - BU-556-7 View Details
$279.99
Buy Now · $279.99
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
TacFire PK-GLK17 Parts Kit for Glock 17 Gen3 TacFire PK-GLK17 Parts Kit for Glock 17 Gen3 View Details
$273.61
Buy Now · $273.61
Classic Firearms
Classic Firearms
Last Updated:
Oct 26, 2026 07:13 AM
TacFire PK-GLK19 Parts Kit for Glock 19 Gen3 TacFire PK-GLK19 Parts Kit for Glock 19 Gen3 View Details
$308.55
Buy Now · $308.55
Classic Firearms