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Aero Precision - M4E1 Complete Upper Receiver - 16" Barrel - .223/5.56 - APAR712705M7
Aero Precision M4E1 Assembled AR 15 Upper Receiver 5.56x45mm Mid-Length 16" Mid Length Barrel EM-15 Gen 2 M-LOK Han
Aero Precision M4E1 Enhanced 14.5" 5.56 M4 Carbine Length Barrel Complete Upper Receiver - Anodized Black - APAR640
Aero Precision AR15 16" 5.56 Mid-Length HBAR QPQ Complete Upper with 13.5" M-LOK Slimline M-LOK - Anodized Bla
Aero Precision M4E1 Threaded 16" 5.56x45mm Mid-Length Complete Upper Receiver with ATLAS R-ONE Handguard - OD Green
Aero Precision M4E1 Threaded 10.5" 5.56 Carbine No Forward Assist Complete Upper wtih 9.3" M-LOK ATLAS S-ONE H
Aero Precision 14.5" 5.56 CMV Barrel, Mid-Length with Pinned Epsilon 556SL - APRH101597C
Aero Precision M4E1 Enhanced Gas Piston Complete Upper with 16" 5.56 M4 Carbine Length Barrel & 15" Enhanc
Aero Precision AR15 Complete Upper with 16" 5.56 Mid-Length Heavy QPQ Barrel & 15" ATLAS R-ONE M-LOK Handg
Aero Precision M4E1 Enhanced Complete Upper, 13.9" 5.56 CMV Mid-Length Barrel with 12.7" Enhanced M-LOK Handgu
Aero Precision M4E1 Threaded Complete Upper, 11.5" 5.56 Barrel, 10.3" ATLAS R-ONE M-LOK HG - Kodiak Brown Anod
Aero Precision M4E1 Threaded Complete Upper, 11.5" 5.56 Barrel, 10.3" ATLAS R-ONE M-LOK HG - ODG Anodized - AP
Aero Precision M4E1 Enhanced Gas Piston Complete Upper with 14.5" 5.56 Mid-Length Barrel & 12.7" Enhanced
Aero Precision M4E1 Threaded 16" 5.56x45mm Mid-Length Complete Upper Receiver with ATALS R-ONE Handguard - Kodiak B
Aero Precision M4E1 Threaded 14.5" 5.56 Mid-Length QPQ No Forward Assist Complete Upper with 13.5" Slimline Ha