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Hardened Arms AR-15 .300 Blackout Upper w/Talon Rail & Linear Muzzle Compensator upp0203

Hardened Arms Upper Receiver Assembly, AR-15, .300 Blackout, 10.5 inch Barrel, HBAR Profile, Pistol Length, 1/8 Twist, 5/8x24 Thread, 12 inch Talon Handguard, Linear Muzzle Compensator, Black upp0203
Hardened Arms Upper Receiver Assembly, AR-15, .300 Blackout, 10.5 inch Barrel, HBAR Profile, Pistol Length, 1/8 Twist, 5/8x24 Thread, 12 inch Talon Handguard, Linear Muzzle Compensator, Black upp0203
Hardened Arms Upper Receiver Assembly, AR-15, .300 Blackout, 10.5 inch Barrel, HBAR Profile, Pistol Length, 1/8 Twist, 5/8x24 Thread, 12 inch Talon Handguard, Linear Muzzle Compensator, Black upp0203
Hardened Arms Upper Receiver Assembly, AR-15, .300 Blackout, 10.5 inch Barrel, HBAR Profile, Pistol Length, 1/8 Twist, 5/8x24 Thread, 12 inch Talon Handguard, Linear Muzzle Compensator, Black upp0203
1 of 3 images
Hardened Arms Upper Receiver Assembly, AR-15, .300 Blackout, 10.5 inch Barrel, HBAR Profile, Pistol Length, 1/8 Twist, 5/8x24 Thread, 12 inch Talon Handguard, Linear Muzzle Compensator, Black upp0203
Hardened Arms Upper Receiver Assembly, AR-15, .300 Blackout, 10.5 inch Barrel, HBAR Profile, Pistol Length, 1/8 Twist, 5/8x24 Thread, 12 inch Talon Handguard, Linear Muzzle Compensator, Black upp0203
2 of 3 images
Hardened Arms Upper Receiver Assembly, AR-15, .300 Blackout, 10.5 inch Barrel, HBAR Profile, Pistol Length, 1/8 Twist, 5/8x24 Thread, 12 inch Talon Handguard, Linear Muzzle Compensator, Black upp0203
Hardened Arms Upper Receiver Assembly, AR-15, .300 Blackout, 10.5 inch Barrel, HBAR Profile, Pistol Length, 1/8 Twist, 5/8x24 Thread, 12 inch Talon Handguard, Linear Muzzle Compensator, Black upp0203
3 of 3 images
Hardened Arms Upper Receiver Assembly, AR-15, .300 Blackout, 10.5 inch Barrel, HBAR Profile, Pistol Length, 1/8 Twist, 5/8x24 Thread, 12 inch Talon Handguard, Linear Muzzle Compensator, Black upp0203

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Government Restriction Government Restriction
Questions & Answers
Caliber:
.300 AAC Blackout
Barrel Length:
10.5 in
Barrel Profile:
HBAR
Gas System Length:
Pistol Length
Barrel Twist Rate:
1-8
Muzzle Device:
Linear Compensator
Finish:
Black Anodized
Color:
Black
Fabric/Material:
6061-T6 Aluminum
Handguard Length:
12 in
Mount Type:
Rail
Threads per Inch:
5/8x24

Code: 3Q8-URC-AR15URAC7-UPP0203

MPN: upp0203

Product No Longer Available

Product Info for Hardened Arms AR-15 .300 Blackout Upper w/Talon Rail & Linear Muzzle Compensator

Bring your best game to the range with an upper that stands out from the rest. Built with a premium Hardened Arms 4150CMV Air Gauged barrel and finished off with a 12 Talon (TLN) M-Lok compatible free float rail. Coupled with a Hardened Arms Linear Muzzle Compensator (LMC) to help push the noise away from the shooter. Utilizing the best in parts and in house manufacturing you wont be disappointed.image

Fits any mil-spec AR15 lower receiver

Package Contents:

  • Hardened Arms AR-15 .300 Blackout Upper w/Talon Rail & Linear Muzzle Compensator

Ammunition

1–39 / 39
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Freedom Munitions .300 Blackout 125 Grain Full Metal Jacket Brass Rifle Ammo, 50 Rounds, FM300F125N50
Freedom Munitions .300 Blackout 125 Grain Full Metal Jacket Brass Rifle Ammo, 50 Rounds, FM300F125N50
(5)
List: $37.19 (Save 19%)
$29.99
$0.60/Round
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Freedom Munitions .300 Blackout 147 Grain Full Metal Jacket Brass Rifle Ammunition
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$30.49
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Freedom Munitions .300 Blackout 150 Grain Full Metal Jacket Brass Rifle Ammunition
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$30.99
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11% Coupon
Hornady Frontier .300 AAC Blackout 125 Grain Full Metal Jacket Centerfire Rifle Ammunition
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Remington .300 AAC Blackout UMC 220 Grain Open Tip Flat Base Brass Rifle Ammunition
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$256.99
$1.46 - $1.61/Round
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Super Vel Ammunition 300 Blackout 200 grain Full Metal Jacket Brass Cased Rifle Ammunition
Super Vel Ammunition 300 Blackout 200 grain Full Metal Jacket Brass Cased Rifle Ammunition
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$53.49
$1.07 - $1.13/Round
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Doubletap Ammunition Colt Defense .300 AAC Blackout, 125 grain, Solid Copper, 20 Rounds Rifle Ammo, 300BLK125CT
Doubletap Ammunition Colt Defense .300 AAC Blackout, 125 grain, Solid Copper, 20 Rounds Rifle Ammo, 300BLK125CT
List: $49.99 (Save 29%)
$35.49
$1.77/Round
Super Vel Ammunition 300 Blackout 150 grain Full Metal Jacket Brass Cased Rifle Ammunition
Super Vel Ammunition 300 Blackout 150 grain Full Metal Jacket Brass Cased Rifle Ammunition
As Low As (Save Up to 20%)
$46.49
$0.76 - $0.93/Round
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13% Coupon
Barnes Precision Match .300 AAC Blackout 125 grain Match Burner Open Tip Match Boat Tail Centerfire Rifle Ammunition
Barnes Precision Match .300 AAC Blackout 125 grain Match Burner Open Tip Match Boat Tail Centerfire Rifle Ammunition
(1)
As Low As (Save Up to 11%)
$41.99
$2.10/Round
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Remington UMC Rifle .300 AAC Blackout 220 Grain Open Tip Flat Base Rifle Ammunition
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(1)
As Low As (Save Up to 11%)
$37.99
$1.80 - $1.90/Round
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Up to 14% Coupon
Atomic Ammunition Subsonic .300 AAC Blackout 220 grain Boat Tail Hollow Point Brass Cased Rifle Ammunition
Atomic Ammunition Subsonic .300 AAC Blackout 220 grain Boat Tail Hollow Point Brass Cased Rifle Ammunition
As Low As (Save Up to $3.01)
$37.49
$1.67 - $1.87/Round
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Hornady Ammo Custom, .300 Blackout, 110 Grain, Centerfire Rifle Ammo, CX Polymer Tip, 20 Rounds, 808794
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(4)
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$37.66
$1.88/Round
Nosler BTA Ballistic Tip Ammunition 300 Blackout 220 Grain Ballistic Tip Round Nose Brass Cased Centerfire Rifle Ammo, 20 Rounds, 61050
Nosler BTA Ballistic Tip Ammunition 300 Blackout 220 Grain Ballistic Tip Round Nose Brass Cased Centerfire Rifle Ammo, 20 Rounds, 61050
List: $48.95 (Save 16%)
$41.19
$2.06/Round
SinterFire Reduced Hazard .300 AAC Blackout 110 Grain Frangible Brass Cased Rifle Ammo, 50 Rounds, SF300BLK110RHA
SinterFire Reduced Hazard .300 AAC Blackout 110 Grain Frangible Brass Cased Rifle Ammo, 50 Rounds, SF300BLK110RHA
(3)
List: $50.69 (Save 12%)
$44.49
$0.89/Round
Underwood Ammo .300 AAC Blackout 194 Grain Solid Monolithic Hollow Point Nickel Plated Brass Cased Rifle Ammo, 20 Rounds, 452
Underwood Ammo .300 AAC Blackout 194 Grain Solid Monolithic Hollow Point Nickel Plated Brass Cased Rifle Ammo, 20 Rounds, 452
(1)
List: $112.99 (Save 35%)
$72.99
$3.65/Round
Hornady Frontier 300 Blackout 208 Grain FMJ Brass Cased Rifle Ammo, 20 Rounds, FR410
Hornady Frontier 300 Blackout 208 Grain FMJ Brass Cased Rifle Ammo, 20 Rounds, FR410
List: $36.25 (Save 13%)
$31.49
$1.57/Round
Barnes Vor-TxRifle Cartridges, .300 AAC Blackout, TAC-TX Boat Tail , 120 Grain, 20 - Rounds, 30827
Barnes Vor-TxRifle Cartridges, .300 AAC Blackout, TAC-TX Boat Tail , 120 Grain, 20 - Rounds, 30827
(1)
List: $52.99 (Save 17%)
$43.92
$2.20/Round
Hornady Custom .300 AAC Blackout 135 grain Flex Tip eXpanding Brass Cased Centerfire Rifle Ammo, 20 Rounds, 80881
Hornady Custom .300 AAC Blackout 135 grain Flex Tip eXpanding Brass Cased Centerfire Rifle Ammo, 20 Rounds, 80881
(3)
List: $49.53 (Save 25%)
$36.99
$1.85/Round
Underwood Ammo .300 AAC Blackout 125 Grain Polymer Tipped Spitzer Nickel Plated Brass Cased Rifle Ammo, 20 Rounds, 418
Underwood Ammo .300 AAC Blackout 125 Grain Polymer Tipped Spitzer Nickel Plated Brass Cased Rifle Ammo, 20 Rounds, 418
List: $53.81 (Save 33%)
$35.99
$1.80/Round
Lehigh Defense Maximum Expansion .300 AAC Blackout 194 grain Rifle Ammo, 20 Rounds, LA300BLK-194-ME
Lehigh Defense Maximum Expansion .300 AAC Blackout 194 grain Rifle Ammo, 20 Rounds, LA300BLK-194-ME
List: $108.69 (Save 25%)
$81.95
$4.10/Round
Nosler .300 AAC Blackout, Ballistic Tip , 125 grain, Brass Cased, 20 Rounds, 61032
Nosler .300 AAC Blackout, Ballistic Tip , 125 grain, Brass Cased, 20 Rounds, 61032
List: $48.95 (Save $4.46)
$44.49
$2.22/Round
Underwood Ammo .300 AAC Blackout 220 Grain Hollowpoint Boat Tail Match Nickel Plated Brass Cased Rifle Ammo, 20 Rounds, 419
Underwood Ammo .300 AAC Blackout 220 Grain Hollowpoint Boat Tail Match Nickel Plated Brass Cased Rifle Ammo, 20 Rounds, 419
(2)
List: $70.58 (Save 46%)
$37.99
$1.90/Round
On Sale
Federal Premium Power-Shok Copper .300 AAC Blackout 120 Grain Copper Hollow Point Rifle Ammo, 20 Rounds, 300BLK120LFA
Federal Premium Power-Shok Copper .300 AAC Blackout 120 Grain Copper Hollow Point Rifle Ammo, 20 Rounds, 300BLK120LFA
Price After Rebate
$27.20
$1.70/Round
Wilson Combat Hornady ELD-M .300 AAC Blackout 208 Grain Brass Cased Pistol Ammo, 20 Round, A300BLK-208-ELDM-20RD
Wilson Combat Hornady ELD-M .300 AAC Blackout 208 Grain Brass Cased Pistol Ammo, 20 Round, A300BLK-208-ELDM-20RD
List: $39.95 (Save 14%)
$34.29
$1.71/Round
Wilson Combat Hornady V-MAX .300 AAC Blackout 110 Grain Brass Cased Pistol Ammo, 20 Round, A300BLK-110-VMAX-20RD
Wilson Combat Hornady V-MAX .300 AAC Blackout 110 Grain Brass Cased Pistol Ammo, 20 Round, A300BLK-110-VMAX-20RD
(1)
List: $30.95 (Save $1.96)
$28.99
$1.45/Round
Final Sale
Fort Scott Munitions .300 BlackOut 150 Grain CNC Machined Copper Brass Riffle Ammo, 20 Rounds, 300-150-SCV
Fort Scott Munitions .300 BlackOut 150 Grain CNC Machined Copper Brass Riffle Ammo, 20 Rounds, 300-150-SCV
List: $37.32 (Save $2.33)
$34.99
$1.75/Round
Nosler Varmageddon .300 AAC Blackout 110 Grain Flat Base Tipped Brass Cased Centerfire Rifle Ammo, 20 Rounds, 40127
Nosler Varmageddon .300 AAC Blackout 110 Grain Flat Base Tipped Brass Cased Centerfire Rifle Ammo, 20 Rounds, 40127
(1)
List: $43.95 (Save 14%)
$37.66
$1.88/Round
Atomic Ammunition .300 AAC Blackout 110 Grain Jacketed Hollow Point Brass Cased Centerfire Rifle Ammo, 20 Rounds, 00475
Atomic Ammunition .300 AAC Blackout 110 Grain Jacketed Hollow Point Brass Cased Centerfire Rifle Ammo, 20 Rounds, 00475
List: $38.00 (Save $2.01)
$35.99
$1.80/Round
Veteran Ammo Defense .300 AAC Blackout 110 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-300-26
Veteran Ammo Defense .300 AAC Blackout 110 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-300-26
List: $53.49 (Save 22%)
$41.49
$2.07/Round
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Winchester Super Suppressed .300 AAC Blackout 200 grain Full Metal Jacket Centerfire Rifle Ammo, 20 Rounds, SUP300BLK
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(26)
List: $34.99 (Save 40%)
$20.99
$1.05/Round
Veteran Ammo Defense .300 AAC Blackout 200 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-300-27
Veteran Ammo Defense .300 AAC Blackout 200 Grain Hollow Point Centerfire Pistol Ammo, 20 Rounds, HMBX-300-27
List: $59.99 (Save 18%)
$48.99
$2.45/Round
Freedom Munitions HUSH Subsonic .300 Blackout 220 Grain HPBT Brass Rifle Ammo, 50 Rounds, FMH300H220N50
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(2)
List: $63.19 (Save 12%)
$55.49
$1.11/Round
Best Rated
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(25)
List: $44.80 (Save 16%)
$37.49
$1.87/Round
Best Rated
Hornady BLACK .300 AAC Blackout 208 Grain ELD Brass Cased Rifle Ammo, 20 Rounds, 80891
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(8)
List: $42.92 (Save 14%)
$36.99
$1.85/Round
Best Rated
Hornady BLACK .300 AAC Blackout 110 grain V-MAX Brass Cased Centerfire Rifle Ammo, 20 Rounds, 80873
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(10)
List: $42.47 (Save 18%)
$34.99
$1.75/Round
Best Rated
Sellier & Bellot Subsonic .300 AAC Blackout 200 grain Full Metal Jacket Brass Cased Rifle Ammo, 20 Rounds, SB300BLKSUBA
Sellier & Bellot Subsonic .300 AAC Blackout 200 grain Full Metal Jacket Brass Cased Rifle Ammo, 20 Rounds, SB300BLKSUBA
(14)
List: $20.46 (Save $1.47)
$18.99
$0.95/Round
Best Rated
Armscor Precision Inc USA .300 AAC Blackout 147 Grain Full Metal Jacket Brass Cased Rifle Ammo, 20 Rounds, FAC300AAC-1N-20RD
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(15)
List: $23.99 (Save 29%)
$16.99
$0.85/Round
SIG SAUER .300 AAC Blackout 220 Grain Match Brass Cased Rifle Ammo, 20 Rounds, C300A2-20
SIG SAUER .300 AAC Blackout 220 Grain Match Brass Cased Rifle Ammo, 20 Rounds, C300A2-20
List: $32.99 (Save $3.00)
$29.99
$1.50/Round
On Sale
Federal Premium Power-Shok .300 AAC Blackout 150 Grain Soft Point Rifle Ammo, 20 Rounds, 300BLKB
Federal Premium Power-Shok .300 AAC Blackout 150 Grain Soft Point Rifle Ammo, 20 Rounds, 300BLKB
Price After Rebate
$30.40
$1.90/Round
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Hardened Arms AR-15 .300 Blackout Upper w/Talon Rail & Linear Muzzle Compensator Unavailable & Discontinued Models

List of Unorderable Models

  • Hardened Arms Upper Receiver Assembly, AR-15, .300 Blackout, 10.5 inch Barrel, HBAR Profile, Pistol Length, 1/8 Twist, 5/8x24 Thread, 12 inch Talon Handguard, Linear Muzzle Compensator, Black, upp0203 , MPN: upp0203 , Code: 3Q8-URC-AR15URAC7-UPP0203
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Last updated 2026-09-20 UTC.