16" 5.56 NATO & .223 Wylde AR-15 Carbine Uppers
AR-15 16" Uppers
Shop 16" 5.56 NATO and .223 Wylde AR-15 uppers from Moriarti in carbine-style configurations for recreational, target and general-purpose use. Browse different barrel profiles, twist rates, gas systems, M-LOK handguards and finishes to find the configuration that fits your AR-15. Our 16-inch AR-15 upper assemblies include both 5.56 NATO and .223 Wylde options, with exact components and specifications varying by model.
Why is a 16-inch barrel so common on 5.56 AR-15 carbine uppers?
A 16-inch barrel is a popular AR-15 configuration because it provides a practical balance of overall size and ballistic performance without relying on a shorter barrel configuration. Individual 16" uppers can use different barrel profiles, twist rates and gas-system lengths, so those specifications should be compared separately when choosing an upper.
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AR-15 5.56 NATO 16" Carbine Upper Assembly with 15" M-LOK Handguard | CERAKOTE GRAD Colors | Tactical Charging Handle
Build your dream AR-15 with the Moriarti Arms® 5.56 NATO 16" Carbine Upper Assembly, designed for pe..
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AR-15 5.56/.223 16" Govt Profile BLACK SHARK Upper Assembly / MLOK
Upgrade your AR-15 build with the AR-15 5.56/.223 16" "BLACK SHARK" Upper Assembly. Designed for pre..
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AR-15 5.56/.223 16" M4 Carbine Upper with 15" M-LOK Handguard and Claw Muzzle Brake – 1:7 Twist, Carbine-Length, Moriarti Arms
The AR-15 16" M4 Carbine Upper Assembly from Moriarti Arms delivers dependable performance, modular ..
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AR-15 5.56/.223 16" M4 MAGPUL MOE FLAT TOP UPPER ASSEMBLY - OD GREEN
Action: Semi-auto Gas System: Carbine Length Gas System Chamber: 5.56 NATO Muzzl..
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AR-15 5.56/.223 16" M4 Magpul MOE Flat Top Upper Assembly – FDE
Upgrade your AR-15 build with the 5.56/.223 16" M4 Magpul MOE Flat Top Upper Assembly in FDE. Design..
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AR-15 5.56/.223 16" M4 Upper Assembly with Triport Muzzle Brake and M-LOK Handguard - Choose Color
Manufactured by Moriarti Armaments – CA & NY Compliant. Choose color on top of page - available ..
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AR-15 5.56/.223 16" M4 Upper with Magpul MOE Handguard – 1:7 Twist, Carbine-Length, Flat Top – Black | Moriarti Arms
The AR-15 16" M4 Flat Top Upper Assembly with Magpul MOE Handguard delivers rugged reliability and p..
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AR-15 5.56/.223 16" M4 Upper with Red MLOK Handguard & Custom Pineapple Muzzle Brake | Moriarti Arms
Make a statement at the range with the AR-15 5.56/.223 16" M4 Red Upper Assembly with Custom Pineapp..
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AR-15 5.56/.223 16" Stainless Steel Premium Quad Rail Upper – .223 Wylde, 1:8 Twist | Moriarti Armaments
Upgrade your AR-15 with Moriarti's 16” Stainless Steel Premium Quad Upper, designed for performance,..
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AR-15 5.56/.223 16" Stainless Steel Spiral Fluted "Black Shark" Upper Assembly / Mlok
The AR-15 5.56/.223 16 Stainless Steel Spiral Fluted Black Shark Upper Assembly / Mlok is a reliable..
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MORIARTI AR-15 5.56 NATO 16" M4 CARBINE UPPER ASSEMBLY / 15" MLOK / TRI
MORIARTI AR-15 5.56 NATO 16 M4 Carbine Upper Assembly with a 15 MLOK rail and triport muzzle brake i..
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MORIARTI AR-15 5.56/.223 16" M4 BARRETT STYLE UPPER ASSEMBLY / FDE
AR-15 5.56/.223 16" M4 Barrett Style Upper Assembly | FDE | CA & NY CompliantUpgrade your AR-15 ..
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Moriarti AR-15 5.56/.223 16" Stainless Checkered Upper Assembly
The AR-15 5.56/.223 16 Stainless Checkered Upper Assembly - designed by Moriarti Armaments is a..
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Moriarti AR-15 5.56/.223 16" ‘Black Canon’ Upper Assembly – 7" Faux Can, M-LOK Rail
Unleash unparalleled performance with the AR-15 5.56/.223 16" M4 "BLACK CANON" Upper Assembly from M..
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AR-15 16" .223 Wylde Diamond Fluted Stainless Tactical Upper / MLOK / CA NY Compliant | Moriarti Arms
CURRENT ETA - 4-6 WEEKSThe AR-15 5.56/.223 16" Diamond Fluted Stainless Tactical Upper from Moriarti..
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AR-15 16" 5.56 NATO Diamond Cut MLOK Upper / 12" Rail / 1:7 / Triport Muzzle / Black | Moriarti Arms
The MORIARTI AR-15 5.56 NATO 16" Diamond Cut MLOK Upper Assembly is a precision-engineered upgrade f..
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AR-15 16" 5.56/.223 BARRETT STYLE LIGHTWEIGHT UPPER ASSEMBLY / 15" MLOK
Features:Barrel Material: 4150V Chrome Moly Vanadium, nitride-coated for superior accuracy and durab..
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AR-15 16" 5.56/.223 Barrett Style Lightweight Upper Assembly, 15" M-Lok, Red Anodized Finish
The AR-15 16" 5.56/.223 Barrett Style Lightweight Upper Assembly features a premium nitride-coated 4..
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AR-15 16" 5.56/.223 Straight Fluted Stainless Tactical Upper / 12" MLOK / Carbine | Moriarti Arms
The AR-15 5.56/.223 16" Stainless Steel Straight Fluted Tactical Upper from Moriarti Arms delivers u..
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AR-15 5.56 16" Upper Assembly - Blue Titanium Cerakote, M-Lok Handguard, A2 Flash Hider
The AR-15 16" 5.56 Upper - Blue Titanium Cerakote is designed for shooters seeking durability a..
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AR-15 5.56/.223 16" Black Diamond Fluted Tactical Upper w/ 12" MLOK & Xtreme Brake | Moriarti Arms
Stand out with precision and style with the AR-15 5.56/.223 16" Black Diamond Tactical Upper Assembl..
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AR-15 5.56/.223 16" Carbine Upper Assembly / Gold Finish / Triport Muzzle Brake
Upgrade your AR-15 with this 5.56/.223 16" Carbine Upper Assembly featuring a stunning Gold TiN Coat..
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AR-15 5.56/.223 16" Green Diamond Tactical Upper Assembly / Mlok
AR-15 5.56/.223 16" Green Diamond Tactical Upper Assembly / Mlok. Barrel is exclusively designed for..
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AR-15 5.56/.223 16" M4 Carbine Upper w/ 15" MLOK Rail – Cerakote Finish | FDE, ODG, Grey | Moriarti Arms
Customize your build with a top-tier AR-15 5.56/.223 16" M4 Carbine Upper Assembly, available in you..