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5.56x45 Receiver Parts

169-192 of 246 Products
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Patriot Ordnance Factory Minuteman Complete Upper 5.56x45mm NATO 10.50" Black Nitride Barrel Aluminum Patriot Brown Receiver 9" M-LOK Handguard Lo Pro DI Gas Block (Mid Length)

Patriot Ordnance Factory Minuteman Complete Upper 5.56x45mm NATO 10.50" Black Nitride Barrel Aluminum Patriot Brown Receiver 9" M-LOK Handguard Lo Pro DI Gas Block (Mid Length)

Out of Stock
Del-Ton Inc DT1040 Complete Upper Assembly 5.56x45mm NATO 16" Mid Length Chrome Moly Vanadium Barrel 15" M-LOK Handguard 7075-T6 Alum Upper Rec

Del-Ton Inc DT1040 Complete Upper Assembly 5.56x45mm NATO 16" Mid Length Chrome Moly Vanadium Barrel 15" M-LOK Handguard 7075-T6 Alum Upper Rec

Out of Stock
Aero Precision M4E1 Enhanced 16" 5.56 Mid-Length Complete Upper Receiver with 15" Enhanced Gen 2 M-LOK Handguard- Cerakote FDE - APAR640252M7

Aero Precision M4E1 Enhanced 16" 5.56 Mid-Length Complete Upper Receiver with 15" Enhanced Gen 2 M-LOK Handguard- Cerakote FDE - APAR640252M7
Out of Stock
Aero Precision M4E1 Threaded 11.5" 5.56 Barrel Complete Upper Receiver with 9" M-LOK ATLAS S-ONE Handguard - Anodized Black - APAR700302M29

Aero Precision M4E1 Threaded 11.5" 5.56 Barrel Complete Upper Receiver with 9" M-LOK ATLAS S-ONE Handguard - Anodized Black - APAR700302M29
Out of Stock
Aero Precision M4E1 Threaded 11.5" 5.56 Barrel Complete Upper Receiver with 9" M-LOK ATLAS S-ONE Handguard - Cerakote FDE - APAR700312M29

Aero Precision M4E1 Threaded 11.5" 5.56 Barrel Complete Upper Receiver with 9" M-LOK ATLAS S-ONE Handguard - Cerakote FDE - APAR700312M29
Out of Stock
Aero Precision M4E1 Threaded 11.5" 5.56 Barrel Complete Upper Receiver with 9" M-LOK ATLAS R-ONE Handguard - Cerakote FDE - APAR700712M29

Aero Precision M4E1 Threaded 11.5" 5.56 Barrel Complete Upper Receiver with 9" M-LOK ATLAS R-ONE Handguard - Cerakote FDE - APAR700712M29

Out of Stock
Aero Precision M4E1 Threaded 16" 5.56 Mid-Length No Forward Assist Complete Upper Receiver with 15" M-LOK ATLAS S-ONE Handguard - Cerakote FDE - APAR712115M7

Aero Precision M4E1 Threaded 16" 5.56 Mid-Length No Forward Assist Complete Upper Receiver with 15" M-LOK ATLAS S-ONE Handguard - Cerakote FDE - APAR712115M7
Out of Stock
M4E1 Enhanced 10.5" 5.56 Barrel Complete Upper Receiver with 9" Enhanced Gen 2 M-LOK Handguard - Anodized Black - APAR640221M2

M4E1 Enhanced 10.5" 5.56 Barrel Complete Upper Receiver with 9" Enhanced Gen 2 M-LOK Handguard - Anodized Black - APAR640221M2

Out of Stock
Aero Precision M4E1 Threaded 7.5" 5.56 Complete Upper Receiver with 7" ATLAS S-ONE Handguard - Anodized Black - APAR700301M0

Aero Precision M4E1 Threaded 7.5" 5.56 Complete Upper Receiver with 7" ATLAS S-ONE Handguard - Anodized Black - APAR700301M0

Out of Stock
Aero Precision M4E1 Enhanced Complete Upper, 14.5" 5.56 Mid-Length Barrel with Pinned Epsilon 556SL, and 12" Enhanced M-LOK Handguard - Anodized Black - APAR640232M68

Aero Precision M4E1 Enhanced Complete Upper, 14.5" 5.56 Mid-Length Barrel with Pinned Epsilon 556SL, and 12" Enhanced M-LOK Handguard - Anodized Black - APAR640232M68

Out of Stock
Aero Precision M4E1 Enhanced 18" 5.56 Rifle Length Complete Upper Receiver with 15" Quad Rail - Anodized Black - APAR640251Q8

Aero Precision M4E1 Enhanced 18" 5.56 Rifle Length Complete Upper Receiver with 15" Quad Rail - Anodized Black - APAR640251Q8

Out of Stock
Aero Precision AR15 Complete Upper with No Forward Assist, 11.5" 5.56 Barrel, 9" M-LOK ATLAS S-ONE Handguard - Anodized Black - APAR610502M29

Aero Precision AR15 Complete Upper with No Forward Assist, 11.5" 5.56 Barrel, 9" M-LOK ATLAS S-ONE Handguard - Anodized Black - APAR610502M29

Out of Stock
Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper with 15" ATLAS R-ONE, VG6 GAMMA 556, BREACH Charging Handle, 5.56 BCG - Anodized Black - APSL100366

Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper with 15" ATLAS R-ONE, VG6 GAMMA 556, BREACH Charging Handle, 5.56 BCG - Anodized Black - APSL100366

Out of Stock
Foxtrot Mike .223 Wylde ( 5.56 Nato/.223 Rem ) 16" Complete Upper, 15.5" M-LOK, Non Reciprocating Forward Charging Handle, W / BCG - FM556-GEN2-16

Foxtrot Mike .223 Wylde ( 5.56 Nato/.223 Rem ) 16" Complete Upper, 15.5" M-LOK, Non Reciprocating Forward Charging Handle, W / BCG - FM556-GEN2-16
Out of Stock
Aero Precision M4E1 Threaded 10.5" 5.56 No Forward Assist Complete Upper Receiver with 9.2" M-LOK ATLAS S-ONE Handguard - Cerakote FDE - APAR712112M2

Aero Precision M4E1 Threaded 10.5" 5.56 No Forward Assist Complete Upper Receiver with 9.2" M-LOK ATLAS S-ONE Handguard - Cerakote FDE - APAR712112M2

Out of Stock
Aero Precision M4E1 Enhanced 10.5" 5.56 Complete Upper Receiver with Pinned FSB and 7" Quad Rail Handguard - Anodized Black - APAR640211Q3

Aero Precision M4E1 Enhanced 10.5" 5.56 Complete Upper Receiver with Pinned FSB and 7" Quad Rail Handguard - Anodized Black - APAR640211Q3

Out of Stock
Aero Precision M4E1 Threaded 7.5" 5.56 Complete Upper Receiver with 7" M-LOK ATLAS R-ONE Handguard - Anodized Black - APAR700701M0

Aero Precision M4E1 Threaded 7.5" 5.56 Complete Upper Receiver with 7" M-LOK ATLAS R-ONE Handguard - Anodized Black - APAR700701M0

Out of Stock
Aero Precision M4E1 Threaded 7.5" 5.56 Complete Upper Receiver with 7" M-LOK ATLAS R-ONE Handguard - FDE Cerakote - APAR700711M0

Aero Precision M4E1 Threaded 7.5" 5.56 Complete Upper Receiver with 7" M-LOK ATLAS R-ONE Handguard - FDE Cerakote - APAR700711M0

Out of Stock
Aero Precision M4E1 Threaded 16" 5.56 M4 Complete Upper Receiver with 15" ATLAS R-ONE Handguard - Cerakote FDE - APAR700715M6

Aero Precision M4E1 Threaded 16" 5.56 M4 Complete Upper Receiver with 15" ATLAS R-ONE Handguard - Cerakote FDE - APAR700715M6

Out of Stock
Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper with 15" ATLAS R-ONE, Adjustable Gas Block, VG6 Gamma 556, BREACH Charging Handle, 5.56 BCG - Anodized Black - APSL100414

Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper with 15" ATLAS R-ONE, Adjustable Gas Block, VG6 Gamma 556, BREACH Charging Handle, 5.56 BCG - Anodized Black - APSL100414

Out of Stock
Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper with 15" ATLAS R-ONE, VG6 Epsilon 556, BREACH Charging Handle, 5.56 BCG - Anodized Black - APSL100413

Aero Precision M4E1 Threaded 16" 5.56 Mid-Length Complete Upper with 15" ATLAS R-ONE, VG6 Epsilon 556, BREACH Charging Handle, 5.56 BCG - Anodized Black - APSL100413
Out of Stock
Aero Precision M4E1 Threaded 10.5" 5.56 Complete Upper Receiver with 9" ATLAS R-ONE Handguard - Cerakote FDE - APAR700712M2

Aero Precision M4E1 Threaded 10.5" 5.56 Complete Upper Receiver with 9" ATLAS R-ONE Handguard - Cerakote FDE - APAR700712M2

Out of Stock
Aero Precision M4E1 Enhanced 14.5" 5.56 M4 Carbine Length Barrel Complete Upper Receiver with 12" Quad Rail Handguard - Anodized Black - APAR640231Q32

Aero Precision M4E1 Enhanced 14.5" 5.56 M4 Carbine Length Barrel Complete Upper Receiver with 12" Quad Rail Handguard - Anodized Black - APAR640231Q32

Out of Stock
Foxtrot Mike .223 Wylde ( 5.56 Nato/.223 Rem ) 13.9" Complete Upper, M-LOK Handguard, Non Reciprocating Forward Charging Handle, BCG - FM15U-223-G2-13.9M-2

Foxtrot Mike .223 Wylde ( 5.56 Nato/.223 Rem ) 13.9" Complete Upper, M-LOK Handguard, Non Reciprocating Forward Charging Handle, BCG - FM15U-223-G2-13.9M-2
Out of Stock
169-192 of 246 Products
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