Product Price Status/Qty Last change Last update Store
Jacob Grey Firearms Complete Upper Assembly, 9mm, 10in, 1-10 Twist, 1/2x36 Thread, Black, 9MM10CUA 850030294746 $551.45 In Stock 13d ago 2h ago Optics Planet
Aero Precision M4E1 16" .300 Blackout Barrel Complete Upper Receiver $551.99 In Stock 47d ago 34m ago GrabAGun.com
Spikes Tactical Upper 5.56 16in Midlength LE w/BLK MOE Handguard & FSP, STU5035-MOS 815648021245 $553.50 Backorder 12d ago 2h ago Optics Planet
CMMG Banshee MK4 Upper .22 LR 4.5" Barrel $553.99 In Stock 5d ago 34m ago GrabAGun.com
AERO PRECISION - M4E1 Assembled Gen 2 Upper Receiver 10 Pistol Length 815421022674 $554.99 In Stock 15d ago 4h ago Brownells
AERO PRECISION - M4E1 Assembled Gen2 Upper 10.5 Car Length 7 Handguard 815421022445 $554.99 In Stock 15d ago 4h ago Brownells
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 6h ago 2h 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 13d ago 2h ago Optics Planet
Aero Precision Complete Upper Receiver, M4E1-T, 10in .300 Blackout Barrel, 9in M-LOK ATLAS S-ONE Handguard, Anodized Black, APAR700302M4 840014601745 $554.99 In Stock 6h ago 2h 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 6d ago 2h 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 13d ago 2h ago Optics Planet
Aero Precision 10″ .300 BLK M4E1 ATLAS-S Complete Upper – Black $554.99 In Stock 15d ago 12m ago AR15Discounts
M4E1 Complete Upper, 10.5″ 5.56 Barrel w/ FSB EM-7 Gen 2 Handguard – Anodized Black $554.99 In Stock 56d ago 12m ago AR15Discounts
Aero Precision M4E1 5.56 Rifle 18" Barrel Complete Upper Receiver $555.99 In Stock 47d ago 34m ago GrabAGun.com
Spikes Tactical Upper 5.56 16in M4 LE w/BLK M-LOK Handguard & FSP, STU5025-MMS 815648021061 $558.00 Backorder 8d ago 2h ago Optics Planet
Spikes Tactical Upper 5.56 16in M4 LE w/FDE M-LOK Handguard & FSP, STU5025-MMF 815648025649 $558.00 Backorder 8d ago 2h ago Optics Planet
Rock River Arms Completed Pistol Upper Receiver, A4 .223/5.56mm, 10.5 Inch Barrel, 1-7 Twist, 1/2-28 Thread, Free-Float Handguard, A2 Flash Hide, Black, AR0366B 842834125524 $558.89 Backorder 3h ago 2h ago Optics Planet
Jacob Grey Firearms 9mm 11in Complete Upper Assembly, Black, 9MMB11CUA 850030294753 $559.44 In Stock 13d ago 2h ago Optics Planet
PSA 16" Midlength 5.56 NATO 1:7 Stainless Steel MOE Freedom Rifle Kit - 7778692 $559.99 In Stock 18d ago 21m 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 18d ago 21m 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 18d ago 21m ago Palmetto
Aero Precision M4E1 Threaded Barreled Upper .223 Wylde Fluted Mid-Length ATLAS R-ONE - 16" $559.99 In Stock 7d ago 44m ago Primary Arms
Aero Precision M4E1 Threaded Barreled AR-15 Upper .223 Wylde Fluted Mid-Length ATLAS S-ONE - 16" $559.99 In Stock 7d ago 44m ago Primary Arms
Del-Ton Pre-Ban Government Profile Rifle Kit, 20in, Standard/Rifle, RKT106 848456000966 $559.99 In Stock 21h ago 2h ago Optics Planet
Aero Precision M4E1 Complete Upper Receiver, 16in, 5.56, M4, Carbine Barrel, EM-12 HG Gen 2, FDE Cerakote, APAR640232M6 815421023107 $559.99 In Stock 3d ago 2h ago Optics Planet
Aero Precision Complete Upper, M4E1-E, .223 Wylde, 16in, Mid-Length, EQ15 Cerakote, FDE, APAR600252Q72 840014613151 $559.99 In Stock 13d ago 2h ago Optics Planet
Rock River Arms Upper Receiver, A4 .223 Wylde, 16 Inch Barrel, Varmint Profile, 1-8 Twist, Free-Float Handguard, Black, AR0500 842834107766 $559.99 In Stock 4d ago 2h ago Optics Planet
Matador Arms Upper Reciever, Mat-9K, 9mm, 5 inch Barrel, 1-10 Twist, 1/2x28 Threads, Black, 850045441135 $559.99 In Stock 20h ago 2h 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 Backorder 13d ago 2h ago Optics Planet
Aero Precision Complete Upper Receiver, M4E1, 16in, 5.56 Mid Pencil Barrel, EQ-12 HG Gen 2, FDE Cerakote, APAR640232Q39 815421023237 $559.99 Backorder 6h ago 2h 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 6d ago 2h ago Optics Planet
Aero Precision M4E1 Threaded Complete Upper, 16″ 5.56 Mid-Length Barrel, ATLAS R-ONE 15″ M-LOK HG $559.99 In Stock 7d ago 12m 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 12d ago 2h ago Optics Planet
BCM® Standard 16" Mid Length Complete Upper Receiver Group $560.40 In Stock 11d ago 11m ago Bravo Company USA
BCM® Standard 14.5" Mid Length Complete Upper Receiver Group $560.40 In Stock 11d ago 11m 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 17d ago 44m ago Primary Arms
Aero Precision M4E1 5.56/.223 Upper Receiver Less BCG & Charg. Handle, 16\\\" Barrel $562.49 Backorder 55d ago 50m ago Sportsman's Guide
MIDWEST INDUSTRIES, INC. - AR-15 16" Lightweight Upper w/ 14" M-LOK Combat Rail 812102031369 $562.99 In Stock 17d ago 4h ago Brownells
Aero Precision EPC-9 Threaded Complete Upper Receiver, 16in 9mm, w/ ATLAS R-ONE 15in Handguard, FDE, APAR620715M87 840014613533 $564.99 In Stock 13d ago 2h ago Optics Planet
Aero Precision M4E1-E Complete Upper, 14.5in 5.56 M4 Carbine Barrel, EM-12 Handguard Gen 2, Anodized Black, APAR640231M32 840014603527 $564.99 In Stock 13d ago 2h ago Optics Planet
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 13d ago 2h ago Optics Planet
Aero Precision Complete Upper Receiver, M4E1-E, 16in, .223 Wylde Fluted Barrel, EM-15 Handguard Gen 2, Anodized Black, APAR640232M50 840014603220 $564.99 In Stock 6d ago 2h 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 13d ago 2h 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 13d ago 2h 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 8d ago 2h 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 8d ago 2h 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 21h ago 12m 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 15d ago 12m ago AR15Discounts
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 4d ago 2h ago Optics Planet
Spike's Tactical 16" 5.56 M4 LE Complete AR-15 Upper - with Front Sight Base $567.00 In Stock 17d ago 44m ago Primary Arms
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