Product Price Status/Qty Last change Last update Store
Aero Precision M4E1 Threaded .300 Blackout Complete Upper Receiver, 10in, 1-7 Twist, 5/8x24 Thread, ATLAS R-ONE Handguard, Black Anodized, APAR700702M4 840014608577 $554.99 In Stock 2d ago 18m ago Optics Planet
Aero Precision Complete Upper, M4E1-E, 5.56, 20in, Rifle Barrel, 1/7 Twist, EQ15, FDE, APAR640252Q48 840014603213 $554.99 In Stock 2d ago 18m ago Optics Planet
Aero Precision M4E1-T RM10.3 Complete Upper, 5.56 x 45, 12.5inch, Government, Carbine, 1-7 Twist, 1/2 x 28 Thread, Anodized, Black, APAR700703M30 840014620616 $554.99 In Stock 2d ago 18m ago Optics Planet
Aero Precision Complete Upper Receiver, M4E1-E, 5.56x45mm NATO, 20in, Government, Rifle Length, 1 in 7, 1/2 x 28, 15in, A2 Flash Hider, Cerakote, FDE, APAR640252M48 840014603190 $554.99 In Stock 2d ago 18m ago Optics Planet
Aero Precision M4E1 5.56 Rifle 18" Barrel Complete Upper Receiver $555.99 In Stock 64d ago 30m ago GrabAGun.com
Aero Precision M4E1 Complete Upper, 20in 6.5 Grendel Stainless Steel Barrel, EM15 Gen 2 HG, FDE Cerakote, APAR640252M53 840014603411 $556.74 In Stock 2d ago 18m ago Optics Planet
Aero Precision M4E1 5.56 14.5″ Complete Upper w/ Pinned VG6 Gamma 556SL $556.95 In Stock 5d ago 6m ago AR15Discounts
Spikes Tactical Upper 5.56 16in M4 LE w/BLK M-LOK Handguard & FSP, STU5025-MMS 815648021061 $558.00 Backorder 2d ago 18m ago Optics Planet
Spikes Tactical Upper 5.56 16in M4 LE w/FDE M-LOK Handguard & FSP, STU5025-MMF 815648025649 $558.00 Backorder 2d ago 18m ago Optics Planet
Aero Precision M4E1 Complete Upper Receiver, AR-15, 18 in Rifle Length Barrel, 15 in M-LOK Handguard, No BCH/CH, Magpul Cerakote, Flat Dark Earth, APAR640252M8 815421023497 $558.79 In Stock 2d ago 18m ago Optics Planet
Rock River Arms Completed Upper Receiver, Coyote Carbine .223/5.56mm, 16 Inch Barrel, 1/2-28 Thread, Free-Float Handguard, Vortex Flash Hider, Black, AR0592 842834100040 $558.99 In Stock 2d ago 18m ago Optics Planet
Jacob Grey Firearms 9mm 11in Complete Upper Assembly, Black, 9MMB11CUA 850030294753 $559.44 In Stock 2d ago 18m ago Optics Planet
Radical Firearms Complete Upper Assembly 16in .450 Bushmaster, 15in MHR, Black, CFU16-450BUSH-15MHR 816903027309 $559.50 Backorder 2d ago 18m ago Optics Planet
PSA 12" Carbine-Length 6.5 Grendel 1/8 Stainless Steel 10" Lightweight M-Lok MOE EPT SBA3 Pistol Kit - 5165449011 $559.99 In Stock 7d ago 52m ago Palmetto
PSA 16" Midlength 5.56 NATO 1/7 Nitride 13.5" Lightweight M-Lok Upper With BCG, CH, & MBUS Sight Set $559.99 In Stock 35d ago 52m ago Palmetto
PSA 10.5" Carbine-Length .223 Wylde 1/8 Nitride, Geissele 9.5" MK14 M-Lok Upper With BCG & CH $559.99 In Stock 4d ago 52m ago Palmetto
Aero Precision M4E1 Threaded Barreled Upper .223 Wylde Fluted Mid-Length ATLAS R-ONE - 16" $559.99 In Stock 1d ago 46m ago Primary Arms
Aero Precision M4E1 Threaded Barreled AR-15 Upper .223 Wylde Fluted Mid-Length ATLAS S-ONE - 16" $559.99 In Stock 1d ago 46m ago Primary Arms
Aero Precision Complete Upper Receiver, M4E1-T, .223, 18in, Wylde Fluted Barrel, 15in M-LOK ATLAS S-ONE Handguard, Anodized Black, APAR700305M51 840014602025 $559.99 In Stock 2d ago 18m ago Optics Planet
Aero Precision M4E1 Complete Upper Receiver .223 Wylde Mid Barrel EM-15 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 16in, APAR600252M9 815421023503 $559.99 In Stock 1d ago 18m ago Optics Planet
Troy Upper Receiver Kit, 16in Barrel, M-LOK Handguard, 13in, A3, Black, SUPG-A3M-16BT-00 812441029911 $559.99 In Stock 2d ago 18m ago Optics Planet
Aero Precision Complete Upper, M4E1-E, .223 Wylde, 16in, Mid-Length, EQ15 Cerakote, FDE, APAR600252Q72 840014613151 $559.99 In Stock 2d ago 18m ago Optics Planet
Stag Arms AR-15 Tactical Right Hand Upper Receiver, .300 AAC Blackout, 8in Barrel, GOV-CMV Profile, 1-7 Twist, 1/2 x 28 Thread, VG6 Delta, Black, STAG15102122 840213901981 $559.99 Backorder 2d ago 18m ago Optics Planet
Aero Precision M4E1-T 16″ 5.56 Midlength R-ONE Complete Upper – ODG Anodized $559.99 In Stock 3d ago 6m ago AR15Discounts
Aero Precision M5E1 Complete Upper Reciever, .308, 16in Mid Barrell, 1-10 Twist, 5/8x24 Thread, Free-Float Handguard, Stainless Steel, Anodized, Black, APAR308554M23 840014608713 $560.31 In Stock 2d ago 18m ago Optics Planet
BCM® Standard 16" Mid Length Complete Upper Receiver Group $560.40 In Stock 28d ago 2h ago Bravo Company USA
BCM® Standard 14.5" Mid Length Complete Upper Receiver Group $560.40 In Stock 28d ago 2h ago Bravo Company USA
Radical Firearms 20" .450 Bushmaster 1:14 Carbine Length HBAR Complete AR-15 Upper - 15" M-LOK MHR Gen3 Rail $560.45 In Stock 3d ago 46m ago Primary Arms
Aero Precision M4E1 Enhanced No Forward Assist Complete Upper Receiver, 16in 5.56 Mid, EM15, FDE, APAR612294M7 840014613335 $561.19 In Stock 2d ago 18m ago Optics Planet
Aero Precision M4E1 5.56/.223 Upper Receiver Less BCG & Charg. Handle, 16\\\" Barrel $562.49 In Stock 4d ago 21m ago Sportsman's Guide
MIDWEST INDUSTRIES, INC. - AR-15 16" Lightweight Upper w/ 14" M-LOK Combat Rail 812102031369 $562.99 In Stock 35d ago 2h ago Brownells
Aero Precision Complete Upper Receiver, M4E1-T, 14.5in, 5.56 Carbine Length Barrel, 12in M-LOK ATLAS S-ONE Handguard, Anodized Black, APAR700304M32 840014601264 $564.99 In Stock 2d ago 18m ago Optics Planet
Aero Precision M4E1-T Complete Upper, 14.5in 5.56 Carbine Length BRL, 12in M-LOK AR15 ATLAS R-ONE HG, Anodized Black, APAR700704M32 840014602292 $564.99 In Stock 2d ago 18m ago Optics Planet
Aero Precision EPC-9 Threaded Complete Upper Receiver, 16in 9mm, w/ ATLAS S-ONE 15in Handguard, FDE, APAR620115M87 840014613557 $564.99 Backorder 2d ago 18m ago Optics Planet
Aero Precision M4E1-T Complete Upper, .223 Wylde, 18in, Rifle Length, 1/8, 15in M-LOK AR15 ATLAS S-ONE, A2, FDE, APAR700315M73 815421029161 $564.99 Backorder 2d ago 18m ago Optics Planet
Aero Precision Complete Upper Receiver, M4E1-T, .223 Wylde, 18in, Government, Rifle Length, 1 in 8, 1/2 x 28, 15in, A2 Flash Hider, Cerakote, FDE, APAR700715M42 840014602742 $564.99 Backorder 2d ago 18m ago Optics Planet
Aero Precision M4E1-T Complete Upper, 16″ .300 Blackout Barrel, 15″ M-LOK ATLAS S-ONE HG – Anodized Black $564.99 In Stock 9d ago 6m ago AR15Discounts
Aero Precision M4E1 Complete Upper 16″ .300 Blackout Barrel EM-15 Gen 2 Handguard – Anodized Black $564.99 In Stock 3d ago 6m ago AR15Discounts
Aero Precision M4E1 Threaded Complete Upper 16″ 5.56 Mid Pencil Length Barrel, ATLAS R-ONE 15″ M-LOK HG – Anodized $564.99 In Stock 3d ago 6m ago AR15Discounts
Aero Precision M4E1 Threaded Complete Upper, 16″ 5.56 Mid Pencil Length Barrel, 15″ M-LOK ATLAS S-ONE Handguard – Anodized Black $564.99 In Stock 3d ago 6m ago AR15Discounts
Aero Precision M4E1 Threaded Complete Upper, 16″ .300 Blackout Barrel, ATLAS R-ONE 15″ M-LOK HG – Anodized $564.99 In Stock 3d ago 6m ago AR15Discounts
Aero Precision M4E1-T Complete Upper, 20in 6.5 Grendel Stainless Steel Barrel, SM15, FDE Cerakote, APAR700335M53 840014608423 $565.79 In Stock 2d ago 18m ago Optics Planet
Aero Precision M4E1 Threaded No Forward Assist Complete Upper Receiver, 16in 5.56 Mid, RM15, FDE, APAR712715M7 840014613397 $565.79 In Stock 2d ago 18m ago Optics Planet
Outerwild AR15 Complete Premium Upper Receiver Billet, 5.56NATO, 16in, 1-7 Twist, 15in M-LOK Handguard, Black Anodize, 4027-3410-001-O 850046695612 $565.95 In Stock 2d ago 18m ago Optics Planet
CMMG Banshee MK4 Upper .22 LR 4.5" Barrel $565.99 In Stock 9d ago 30m ago GrabAGun.com
Spike's Tactical 16" 5.56 M4 LE Complete AR-15 Upper - with Front Sight Base $567.00 In Stock 3d ago 46m ago Primary Arms
Spikes Tactical Upper 5.56 16in Midlength LE w/ML Handguard and FSP, Black, STU5035-MLS 815648021221 $567.00 In Stock 2d ago 18m ago Optics Planet
Spikes Tactical Upper 5.56 16in M4 LE w/M4 Handgaurd, Black, STU5025-M4S 815648021030 $567.00 Backorder 2d ago 18m ago Optics Planet
Aero Precision Complete Upper Receiver, M4E1, .300 Barrel EM-7 HG, No BCG/Charging Handle, Gen 2, FDE Cerakote, 8in, APAR600212M1 815421022551 $569.99 In Stock 2d ago 18m ago Optics Planet
Aero Precision M4E1 Threaded Complete Upper 18″ 5.56 Rifle Length Barrel ATLAS R-ONE 15″ M-LOK HG Anodized $569.99 In Stock 3d ago 6m ago AR15Discounts
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