ArmsAgora logo Loadout Loadout

5.56x45mm NATO Upper Receivers

3,092 products found across 110 retailers

All 5.56x45mm NATO Upper Receivers Products (3,092 results)
Daniel Defense 5.56 NATO 11.5” 1:7” Bbl Contract Overrun Upper Receiver w/DD4 7.0 Handguard WEBGB-07419-URG - Daniel Defense
MSRP
Daniel Defense
Daniel Defense 5.56 NATO 11.5” 1:7” Bbl Contract Overrun Upper Receiver w/DD4 7.0 Handguard WEBGB-07419-URG
$899.99
● In Stock
Mk16 Super Duty Complete Upper Receivers 5.56mm - Mk16 14.5'''' Super Duty Upper Chf Bbl, Ach, Nano Fh/Bcg Odg - Geissele Automatics
Geissele Automatics
Mk16 Super Duty Complete Upper Receivers 5.56mm - Mk16 14.5'''' Super Duty Upper Chf Bbl, Ach, Nano Fh/Bcg Odg
$1,262.25
● Out of Stock
Ar-15 Super Duty Stripped Upper Receivers 5.56mm - Ar-15 10.3'''' Top Tier Stripped Super Duty Upper Od Green - Geissele Automatics
Geissele Automatics
Ar-15 Super Duty Stripped Upper Receivers 5.56mm - Ar-15 10.3'''' Top Tier Stripped Super Duty Upper Od Green
$1,019.99
● Out of Stock
Ar-15 Super Duty Nano Complete Upper Receivers 5.56mm - Ar-15 16 Super Duty Nano Complete Upper Receiver Ddc - Geissele Automatics
Geissele Automatics
Ar-15 Super Duty Nano Complete Upper Receivers 5.56mm - Ar-15 16 Super Duty Nano Complete Upper Receiver Ddc
$1,274.99
● Out of Stock
Ar-15 Super Duty Nano Complete Upper Receivers 5.56mm - Ar-15 16 Super Duty Nano Complete Upper Receiver Black - Geissele Automatics
Geissele Automatics
Ar-15 Super Duty Nano Complete Upper Receivers 5.56mm - Ar-15 16 Super Duty Nano Complete Upper Receiver Black
$1,119.00
● Out of Stock
Ar-15 Super Duty Nano Complete Upper Receivers 5.56mm - Ar-15 14.5 Super Duty Nano Complete Upper Receiver Ddc - Geissele Automatics
Geissele Automatics
Ar-15 Super Duty Nano Complete Upper Receivers 5.56mm - Ar-15 14.5 Super Duty Nano Complete Upper Receiver Ddc
$1,249.41
● Out of Stock
Ar-15 Super Duty Nano Complete Upper Receivers 5.56mm - Ar-15 14.5 Super Duty Nano Complete Upper Receiver Black - Geissele Automatics
Geissele Automatics
Ar-15 Super Duty Nano Complete Upper Receivers 5.56mm - Ar-15 14.5 Super Duty Nano Complete Upper Receiver Black
$1,116.50
● Out of Stock
Mk16 Super Duty Complete Upper Receivers 5.56mm - Mk16 11.5'''' Super Duty Upper Chf Bbl, Ach, Nano Fh/Bcg Blk - Geissele Automatics
Geissele Automatics
Mk16 Super Duty Complete Upper Receivers 5.56mm - Mk16 11.5'''' Super Duty Upper Chf Bbl, Ach, Nano Fh/Bcg Blk
$1,119.00
● Out of Stock
Mk16 Super Duty Complete Upper Receivers 5.56mm - Mk16 11.5'''' Super Duty Upper Chf Bbl, Ach, Nano Fh/Bcg Ddc - Geissele Automatics
Geissele Automatics
Mk16 Super Duty Complete Upper Receivers 5.56mm - Mk16 11.5'''' Super Duty Upper Chf Bbl, Ach, Nano Fh/Bcg Ddc
$1,252.00
● Out of Stock
Radian Weapons Model 1 Upper Receiver and Hand Guard Set 8.5 in M-LOK Radian Grey - Radian Weapons
▼ 38%
Radian Weapons
Radian Weapons Model 1 Upper Receiver and Hand Guard Set 8.5 in M-LOK Radian Grey
$481.00 $769.95
● In Stock
Radian Weapons Model 1 Upper Receiver and Hand Guard Set 10 in M-LOK Radian Grey - Radian Weapons
▼ 21%
Radian Weapons
Radian Weapons Model 1 Upper Receiver and Hand Guard Set 10 in M-LOK Radian Grey
$643.00 $814.95
● In Stock
Radian Weapons Upper & Hand Guard Set Radian Green 15.5 in - Radian Weapons
Radian Weapons
Radian Weapons Upper & Hand Guard Set Radian Green 15.5 in
$864.48
● Out of Stock
Radian Weapons Model 1 Upper Receiver and Hand Guard Set 15.5 in M-LOK Radian Grey - Radian Weapons
Radian Weapons
Radian Weapons Model 1 Upper Receiver and Hand Guard Set 15.5 in M-LOK Radian Grey
● In Stock
Timber Creek Outdoors Enforcer Flat Dark Earth 5.56 13 Barrel M-LOK - Timber Creek Outdoors
Timber Creek Outdoors
Timber Creek Outdoors Enforcer Flat Dark Earth 5.56 13 Barrel M-LOK
● Out of Stock
Daniel Defense V9 Upper Group Black 5.56 / .223 Rem 16-inch - Daniel Defense
▼ 15%
Daniel Defense
Daniel Defense V9 Upper Group Black 5.56 / .223 Rem 16-inch
$995.00 $1,167.00
● Availability Unknown
Aero Precision M4E1 Enhanced Complete Upper Receiver 5.56 NATO 14.5 in Barrel Government Profile 1-7 Twist 12 in M-LOK Handguard Pinned VG6 Epsilon - Aero Precision
▼ 5%
Aero Precision
Aero Precision M4E1 Enhanced Complete Upper Receiver 5.56 NATO 14.5 in Barrel Government Profile 1-7 Twist 12 in M-LOK Handguard Pinned VG6 Epsilon
$622.24 $654.99
● Availability Unknown
Aero Precision AR-15 M4E1-E Barreled Upper Receiver 5.56x45mm NATO 10.5" Barrel 9.3" EM Gen2 Enhanced Handguard Flat Dark Earth - Aero Precision
▼ 22%
Aero Precision
Aero Precision AR-15 M4E1-E Barreled Upper Receiver 5.56x45mm NATO 10.5" Barrel 9.3" EM Gen2 Enhanced Handguard Flat Dark Earth
$442.75 $569.99
● Availability Unknown
M4e1 5.56mm Assembled Upper Receiver W/Gen-2 Handguard & Fsb - M4e1 5.56 Assm Uppr Rcvr Gov 10.5'''' Bbl Carbine W/7''''hg & Fsb - Aero Precision
▼ 2%
Aero Precision
M4e1 5.56mm Assembled Upper Receiver W/Gen-2 Handguard & Fsb - M4e1 5.56 Assm Uppr Rcvr Gov 10.5'''' Bbl Carbine W/7''''hg & Fsb
$543.70 $554.99
● Availability Unknown
LMT Defense MRP-L M-LOK Railed Upper 5.56x45mm/.300 AAC Blackout/6.8 SPC no BCG&CH, Black - Lewis Machine and Tool
MSRP
Lewis Machine and Tool
LMT Defense MRP-L M-LOK Railed Upper 5.56x45mm/.300 AAC Blackout/6.8 SPC no BCG&CH, Black
$940.50
● In Stock
TROY A4 COMPLETE UPPR 556 16" - TROY Industries
▼ 12%
TROY Industries
TROY A4 COMPLETE UPPR 556 16"
$654.17 $740.00
● In Stock
Optics Ready AR-15 A3 Pistol U - TROY Industries
▼ 10%
TROY Industries
Optics Ready AR-15 A3 Pistol U
$565.32 $630.00
● In Stock
Adams Arms P1 Upper 5.56 NATO / .223 Rem 16 Barrel - Adams Arms
Adams Arms
Adams Arms P1 Upper 5.56 NATO / .223 Rem 16 Barrel
$444.69
● Out of Stock
Luth-ar C7 Retro Complete Upper OD Green 5.56 20 Threaded Barrel - Luth-AR
Luth-AR
Luth-ar C7 Retro Complete Upper OD Green 5.56 20 Threaded Barrel
● Availability Unknown
LUTH-AR BA-F20C77CB A1 C7 MOD RTR COMP UPP BRL - Luth-AR
Luth-AR
LUTH-AR BA-F20C77CB A1 C7 MOD RTR COMP UPP BRL
● Availability Unknown
Stay Connected

Join our newsletter for the latest updates and exclusive deals.

ARMSAGORA

Compare prices on firearms, ammunition, and accessories from hundreds of trusted retailers. Find the best deals, track prices, and build your own loadouts.

Shop
Deals Loadouts Categories Brands Search
Account
My Armory Loadout Builder Saved Products
Company
Trusted Retailer Privacy Policy Terms
© 2026 ARMSAGORA. All rights reserved.
Not an FFL licensed dealer. ARMSAGORA is a free product comparison tool. Some links to retailers are affiliate links: we may earn a commission when you buy, at no extra cost to you.