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Radical Firearms 5.56 SOCOM AR-15 Barreled Upper - RPR Handguard - 16"
Aero Precision Standard 5.56 NATO AR-15 Barreled Upper Receiver with FDE Handguard - 16"
Radical Firearms 5.56 AR-15 Barreled Upper Receiver - Slim M-LOK Handguard - BMD Flash Hider - 16"
Aero Precision M4E1-T MOD4 5.56 NATO AR-15 Barreled Upper Receiver - 14.5"
Bravo Company Manufacturing 5.56 NATO Mid-Length AR-15 Barreled Upper - MCMR-15 - 16"
Bravo Company Manufacturing 5.56 NATO Enhanced Lightweight Barreled AR-15 Upper - MCMR-13 - 14.5"
Aero Precision M4E1-T MOD4 5.56 NATO AR-15 Barreled Upper Receiver - 14.5" - ODG
Sons Of Liberty Gun Works M4-EXO3 5.56 AR-15 Barreled Upper Receiver Group - 16"
Aero Precision M4E1 Threaded AR-15 Barreled Upper 5.56 Mid-Length ATLAS R-One - 16"
Bravo Company Manufacturing 5.56 NATO Carbine-Length AR-15 Barreled Upper - MCMR-10 - 12.5"
Sons of Liberty Gun Works East India Starter Kit V2 Combat Grade 5.56 NATO Barreled Upper Receiver - 13.7"
Geissele Automatics Super Duty 5.56 NATO AR-15 Barreled Upper Receiver - 14.5" - DDC - BLEMULA
Bravo Company Manufacturing Standard 5.56 NATO Barreled Upper Receiver with RAIDER-M13 - 14.5"
Radical Firearms 5.56 SOCOM AR-15 Barreled Upper - 12" RPR Handguard - 16"
Aero Precision M4E1 Threaded Barreled AR-15 Upper 5.56 Carbine Length ATLAS R-One - 16"
Aero Precision M4E1 Threaded AR-15 Barreled Upper Receiver 5.56 Mid-Length - ATLAS R-ONE - 14.5"
Bravo Company Manufacturing BFH ELW Mid Length AR-15 Upper Receiver Group - MCMR-13 Handguard - 14.5"
Sons Of Liberty Gun Works M4-EXO3 5.56 NATO AR-15 Barreled Upper Receiver - Pinned NOX - 13.7"
Aero Precision M4E1 Threaded AR-15 Barreled Upper 300 BLK Atlas R-One - 16"
Bravo Company Manufacturing 14.5" 5.56 NATO 1:7 Mid-Length Government Contour AR-15 Barreled Upper - 13" M-LOK MCMR Rail
Foxtrot Mike Products MIKE-15 .223 Wylde Gen 2 AR-15 Side Charging Complete Upper Receiver - 13.9"
Sons of Liberty Gun Works M4 L89 CHF 5.56 NATO Barreled Upper Receiver - 13.9" - No Muzzle Device
Radical Firearms 5.56 NATO AR-15 Barreled Upper Receiver - 15" M-LOK Skinny Hybrid Rail
Bravo Company Manufacturing 5.56 NATO Mid-Length BFH AR-15 Barreled Upper - MCMR-15 - 16"
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