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You are here:Home > BARRELS > .300BLK Barrels
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8" to 12.5" Barrels 14.5" to 16" Barrels
Barrels up to 16" chambered in .300BLK!
All NFA rules apply for barrels under 16", it is the buyer's responsibility to make sure they comply with all NFA rules and applicable laws.
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CMMG Barrel Sub-Assm, 8.0" MC 4140CM SBN, 300 BLK Radical Firearms 16" 300 AAC Pistol Gas 1-8 Twist 4150V Spikes Tactical ST- Lothar Walther 16" .300BLK Medium Profile Stainless Steel Barrel 1:8 Twist

Our Price:
$169.95
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Our Price:
$129.95
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Our Price: $299.77
Sale Price: $260.00
You save $39.77!
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CMMG Barrel Sub-Assm, 8.0" MC 4140CM SBN, 300 BLK- 30D810A Radical Firearms 16" 300 AAC Pistol Gas 1-8 Twist 4150V - 16300P1-8 Spikes Tactical ST- Lothar Walther 16" Medium Profile Stainless Steel Barrel 1:8 Twist - SB31603-MP
  • Manufacturer: CMMG
  • Chamber: .300BLK
  • Contour: Medium
  • Fluted: No
  • Barrel Length: 8.0"
  • Twist Rate: 1:7
  • Gas System: Pistol Length
  • Diameter at Gas Port: 0.750"
  • Thread Pitch: 5/8x24
  • Feed Ramps: M4
  • Material: 4140 CrMo
  • Finish: Salt Bath Nitride
  • Process: Button Rifled
  • Barrel Lining: Salt Bath Nitride
  • Barrel Extension: A4
  • Assembly: Stripped
  • Weight: 14.6oz
  • Manufacturer: Radical Firearms
  • Chamber: .300BLK
  • Fluted: No
  • Barrel Length: 16"
  • Twist Rate: 1:8
  • Gas System: Pistol
  • Diameter at Gas Port: 0.750"
  • Thread Pitch: 5/8x24
  • Material: 4150 Chrome Moly Vanadium Steel
  • Finish: Melonite
  • Process: Button Rifled
  • Barrel Lining: Melonite
  • Barrel Extension: A4
  • Assembly: Stripped
  • Weight: 1lb 15.3oz
  • Manufacturer: Lothar Walther & Spikes Tactical
  • Chamber: .300BLK
  • Contour: Medium
  • Fluted: No
  • Barrel Length: 16"
  • Twist Rate: 1:8 (Polygonal)
  • Gas System: Carbine Length
  • Diameter at Gas Port: 0.750"
  • Thread Pitch: 5/8x24
  • Feed Ramps: M4
  • Material: LW-50 Stainless Steel
  • Finish: Bead Blasted
  • Process: Button Rifled
  • Barrel Lining: No
  • Barrel Extension: Improved M4
    • Nickel Boron coating
    • Extended Feed Ramps
  • Assembly: Stripped
  • Weight: 32.0oz
Odin Works 300 Blackout Barrel 16.1" Carbine Length Yankee Hill 16" .300 Blackout Barrel - Threaded Yankee Hill 16" .300 Blackout Barrel - Threaded Fluted

Our Price:
$250.00
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Our Price:
$194.99
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Odin Works 300 Blackout Barrel 16.1" Carbine Leghth- B-300-16 Yankee Hill 16" .300 Blackout Barrel - Threaded - YHM-70-T Yankee Hill 16" .300 Blackout Barrel - Threaded Fluted - YHM-70-TF
  • Manufacturer: Odin Works
  • Chamber: .300BLK
  • Contour: Medium Profile
  • Fluted: No
  • Barrel Length: 16.1"
  • Twist Rate: 1:8
  • Gas System: Carbine
  • Diameter at Gas Port: 0.750"
  • Thread Pitch: 5/8x24
  • Feed Ramps: M4
  • Material: 416 Stainless Steel
  • Finish: Stainless
  • Process: Button Rifled
  • Barrel Lining: Stainless
  • Barrel Extension: A4
  • Assembly: Stripped
  • Weight: 28.6oz
  • Manufacturer: Yankee Hill Machine
  • Chamber: .300BLK
  • Contour: Medium
  • Fluted: No
  • Barrel Length: 16"
  • Twist Rate: 1:8
  • Gas System: Carbine Length
  • Diameter at Gas Port: 0.750"
  • Thread Pitch: 5/8x24
  • Feed Ramps: M4
  • Material: 4140 Chrome Moly Vanadium Steel
  • Finish: Melonite QPQ
  • Process: N/A
  • Barrel Lining: Melonite QPQ
  • Barrel Extension: M4
  • Assembly: Stripped
  • Weight: 26.2oz
  • Manufacturer: Yankee Hill Machine
  • Chamber: .300BLK
  • Contour: Medium
  • Fluted: Yes
  • Barrel Length: 16"
  • Twist Rate: 1:8
  • Gas System: Carbine Length
  • Diameter at Gas Port: .750"
  • Thread Pitch: 5/8x24
  • Feed Ramps: M4
  • Material: 4140 Chrome Moly Vanadium Steel
  • Finish: Melonite QPQ
  • Process: N/A
  • Barrel Lining: Melonite QPQ
  • Barrel Extension: M4
  • Assembly: Stripped
  • Weight: 26.2oz
CMMG 16.1" .300BLK Barrel Multi-Role Profile - 4140CM - Salt Bath Nitride Daniel Defense 10.3" .300BLK CHF Barrel - S2W - Pistol Daniel Defense 16" .300BLK CHF Barrel - S2W - Carbine

Our Price:
$189.95
(Out of Stock)
(1)

Our Price:
$274.99
(Out of Stock)

Our Price:
$274.99
(Out of Stock)
CMMG 16.1" .300BLK Barrel Multi-Role Profile - 4140CM - Salt Bath Nitride - 30DF80A Daniel Defense 10.3" .300BLK CHF Barrel - S2W - Pistol - 07-077-16176-018 Daniel Defense 16" .300BLK CHF Barrel - S2W - Carbine - 36-116-22022-107
  • Manufacturer: CMMG
  • Chamber: .300BLK
  • Contour: Multi Role Profile
  • Fluted: No
  • Barrel Length: 16.1"
  • Twist Rate: 1:7
  • Gas System: Carbine
  • Diameter at Gas Port: 0.750"
  • Thread Pitch: 5/8x24
  • Feed Ramps: M4
  • Material: 4140 Chrome Moly
  • Finish: Salt Bath Nitride
  • Process: Button Rifled
  • Barrel Lining: Salt Bath Nitride
  • Barrel Extension: A4
  • Assembly: Stripped
  • Weight: 28.8oz
  • Manufacturer: Daniel Defense
  • Chamber: .300BLK
  • Contour: S2W
  • Fluted: No
  • Barrel Length: 10.3"
  • Twist Rate: 1:8
  • Gas System: Pistol Length
  • Diameter at Gas Port: 0.750"
  • Thread Pitch: 5/8x24
  • Feed Ramps: M4
  • Material: Mil-Spec Chrome Moly Vanadium Steel
  • Finish: Salt Bath Nitride
  • Process: Cold Hammer Forged
  • Barrel Lining: Salt Bath Nitride
  • Barrel Extension: A4
  • Assembly: Stripped
  • Weight: 20.64oz
  • Manufacturer: Daniel Defense
  • Chamber: .300BLK
  • Contour: S2W
  • Fluted: No
  • Barrel Length: 16"
  • Twist Rate: 1:8
  • Gas System: Carbine Length
  • Diameter at Gas Port: 0.750"
  • Thread Pitch: 5/8x24
  • Feed Ramps: M4
  • Material: Mil-Spec Chrome Moly Vanadium Steel
  • Finish: Salt Bath Nitride
  • Process: Cold Hammer Forged
  • Barrel Lining: Salt Bath Nitride
  • Barrel Extension: A4
  • Assembly: Stripped
  • Weight: 36.64oz