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5.56x45 Rifle Parts

Unlock the full potential of your 5.56x45 rifle with our expertly curated selection of rifle parts, designed to enhance performance and reliability in any scenario. Whether you're upgrading for precision shooting or optimizing for rugged field use, our components deliver unmatched durability and accuracy. Explore the precision-engineered offerings from Aero Precision, known for their meticulous craftsmanship and seamless integration. For those seeking versatility and adaptability, Magpul provides innovative solutions that cater to both novice and seasoned shooters. Additionally, our range includes the versatile .22 ARC components, perfect for those looking to expand their arsenal with precision and efficiency. Each part is crafted to withstand the rigors of extensive use, ensuring your rifle remains a reliable companion in any environment. Elevate your shooting experience with parts that promise superior performance and longevity.

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Aero Precision M4E1 Threaded 8" 5.56 Complete Upper Receiver with 7" M-LOK ATLAS R-ONE Handguard - Anodized Black - APAR700701M102

Aero Precision M4E1 Threaded 8" 5.56 Complete Upper Receiver with 7" M-LOK ATLAS R-ONE Handguard - Anodized Black - APAR700701M102

$509 99
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Aero Precision M4E1 Enhanced Complete Upper, 16" 5.56 HBAR MID-Length Barrel with 15" Enhanced Quad Rail Handguard - Cerakote FDE - APAR600224Q97

Aero Precision M4E1 Enhanced Complete Upper, 16" 5.56 HBAR MID-Length Barrel with 15" Enhanced Quad Rail Handguard - Cerakote FDE - APAR600224Q97
$619 99
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Aero Precision M4E1 Enhanced 14.5" 5.56 M4 Carbine Length Barrel Complete Upper Receiver - Anodized Black - APAR640231M32

Aero Precision M4E1 Enhanced 14.5" 5.56 M4 Carbine Length Barrel Complete Upper Receiver - Anodized Black - APAR640231M32

$564 99
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CMMG 55BB40BAB Resolute MK4 5.56x45mm NATO 16.10", Armor Black, M-LOK Free-Float Handguard for AR-Platform (No BCG or Charging Handle)

CMMG 55BB40BAB Resolute MK4 5.56x45mm NATO 16.10", Armor Black, M-LOK Free-Float Handguard for AR-Platform (No BCG or Charging Handle)

$460 24
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CMMG 55B8D86AB Dissent MK4 5.56x45mm NATO 10.50", Left Side Charging Handle, Armor Black, OEM Zeroed Blast Comp, 9.60" M-LOK Handguard for AR-Platform, Picatinny End Plate

CMMG 55B8D86AB Dissent MK4 5.56x45mm NATO 10.50", Left Side Charging Handle, Armor Black, OEM Zeroed Blast Comp, 9.60" M-LOK Handguard for AR-Platform, Picatinny End Plate

$1297 89
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Aero Precision M4E1 Threaded Complete Upper, 14.5" 5.56 Carbine Length Barrel, 12" M-LOK ATLAS S-ONE Handguard - Anodized Black - APAR700304M32

Aero Precision M4E1 Threaded Complete Upper, 14.5" 5.56 Carbine Length Barrel, 12" M-LOK ATLAS S-ONE Handguard - Anodized Black - APAR700304M32

$564 99
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HuxWrx Safety Co. QD 556 Muzzle Brake 1599 Black with 1/2"-28 tpi Threads, 2.30" OAL, 5.56x45mm NATO AR-Platform

HuxWrx Safety Co. QD 556 Muzzle Brake 1599 Black with 1/2"-28 tpi Threads, 2.30" OAL, 5.56x45mm NATO AR-Platform

$143 00
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Aero Precision AR15 Complete Upper, 16" 5.56 Carbine Barrel with Pinned FSB, MOE Carbine - FDE - APAR502504M64

Aero Precision AR15 Complete Upper, 16" 5.56 Carbine Barrel with Pinned FSB, MOE Carbine - FDE - APAR502504M64

$249 99 $409.99
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Aero Precision 13.7" 5.56 Cold Hammer Forged Barrel with Dimple, Mid-Length - APRH100822C

Aero Precision 13.7" 5.56 Cold Hammer Forged Barrel with Dimple, Mid-Length - APRH100822C

$219 99 $279.99
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Aero Precision M4E1 Threaded PRO Complete Upper with 16.3" 5.56 CHF Mid-Length Barrel and 15" ATLAS R-ONE Handguard - Anodized Black - APUG700705M105-1

Aero Precision M4E1 Threaded PRO Complete Upper with 16.3" 5.56 CHF Mid-Length Barrel and 15" ATLAS R-ONE Handguard - Anodized Black - APUG700705M105-1
$649 99 $1,029.99
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Aero Precision M4E1 Threaded PRO Complete Upper with 13.7" 5.56 CHF Mid-Length Barrel and 12.7" ATLAS R-ONE Handguard - Anodized Black - APUG700704M104-1

Aero Precision M4E1 Threaded PRO Complete Upper with 13.7" 5.56 CHF Mid-Length Barrel and 12.7" ATLAS R-ONE Handguard - Anodized Black - APUG700704M104-1

$1004 99
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Aero Precision 14.5" 5.56 Gov CMV Barrel, Mid-Length with Pinned Gamma 556SL - APRH100067C

Aero Precision 14.5" 5.56 Gov CMV Barrel, Mid-Length with Pinned Gamma 556SL - APRH100067C

$149 99 $249.99
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Ballistic Advantage 10.3" 5.56 Hanson Carbine Length with 9" Ballistic Advantage LOGIC M-LOK Handguard AR15 Complete Upper Receiver - BAUR10002

Ballistic Advantage 10.3" 5.56 Hanson Carbine Length with 9" Ballistic Advantage LOGIC M-LOK Handguard AR15 Complete Upper Receiver - BAUR10002

$459 80
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Sharps Bros SBUR04 Billet Upper Stripped with Forward Assist & Dust Cover Black Anodized Aluminum Receiver for AR-15

Sharps Bros SBUR04 Billet Upper Stripped with Forward Assist & Dust Cover Black Anodized Aluminum Receiver for AR-15

$194 70
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SilencerCo AC5065 SCO15 Stripped Upper Receiver Black Anodized Aluminum for Mil-Spec AR-15 Lower

SilencerCo AC5065 SCO15 Stripped Upper Receiver Black Anodized Aluminum for Mil-Spec AR-15 Lower

$219 00
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LBE ARUPPER AR Upper Recv w/ASST

LBE ARUPPER AR Upper Recv w/ASST

$109 14
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Ballistic Advantage Performance Series 13.9" Hanson Profile 5.56x45mm Mid-Length Barrel with Low Profile Gas Block - BABL556037F

Ballistic Advantage Performance Series 13.9" Hanson Profile 5.56x45mm Mid-Length Barrel with Low Profile Gas Block - BABL556037F
$223 25
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Aero Precision AR15 Complete Upper, 16" 5.56 Mid-Length Barrel with Pinned FSB, MOE Mid-Length - Anodized Black - APAR502503M65

Aero Precision AR15 Complete Upper, 16" 5.56 Mid-Length Barrel with Pinned FSB, MOE Mid-Length - Anodized Black - APAR502503M65

$414 99
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Aero Precision M4E1 Threaded Complete Upper, 14.5" 5.56 Mid-Length Barrel with Pinned Gamma 556 SL, 12" M-LOK ATLAS R-ONE Handguard - Anodized Black - APAR700704M5V38

Aero Precision M4E1 Threaded Complete Upper, 14.5" 5.56 Mid-Length Barrel with Pinned Gamma 556 SL, 12" M-LOK ATLAS R-ONE Handguard - Anodized Black - APAR700704M5V38

$419 99 $654.99
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Ballistic Advantage Modern Series 14.7" Pencil Profile 5.56x45mm Mid-Length Barrel - BABL556012M

Ballistic Advantage Modern Series 14.7" Pencil Profile 5.56x45mm Mid-Length Barrel - BABL556012M
$161 50
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Aero Precision AR15 Complete Upper, 16" 5.56 Mid-Length Barrel with Pinned FSB, MOE Mid-Length - FDE - APAR502504M65

Aero Precision AR15 Complete Upper, 16" 5.56 Mid-Length Barrel with Pinned FSB, MOE Mid-Length - FDE - APAR502504M65
$299 99 $414.99
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Aero Precision AR15 Complete Upper, 10.5" 5.56 Carbine Barrel with Pinned FSB, MOE SL Carbine Handguard - Anodized Black with FDE - APAR502506M3

Aero Precision AR15 Complete Upper, 10.5" 5.56 Carbine Barrel with Pinned FSB, MOE SL Carbine Handguard - Anodized Black with FDE - APAR502506M3

$299 99 $389.99
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Aero Precision AR15 Complete Upper, 16" 5.56 Mid-Length Barrel with Pinned FSB, M4 Handguard - Anodized Black - APAR505631

Aero Precision AR15 Complete Upper, 16" 5.56 Mid-Length Barrel with Pinned FSB, M4 Handguard - Anodized Black - APAR505631
$404 99
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Ballistic Advantage Modern Series 13.7" Government Profile 5.56x45mm Mid-Length Barrel, 1:7 Twist - BABL556033M

Ballistic Advantage Modern Series 13.7" Government Profile 5.56x45mm Mid-Length Barrel, 1:7 Twist - BABL556033M
$89 99 $161.50
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