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/.223 16" MLOK UPPER ASSEMBLY WITH SLIP OVER BARREL SHROUD
Perfect for your next build, this 16" MLOK Upper Assembly is designed to give your AR-15 a sleek, ve..
-25%
AR-15 5.56/.223 16" slick side diamond stainless steel upper assembly / 10" Mlok / Tri
This AR-15 5.56/.223 16" Upper Assembly is perfect for building or upgrading your rifle. CA/NY compl..
-25%
AR-15 5.56/.223 16" Stainless Steel Spiral Fluted Upper Assembly | Mlok | Tactical Upgrade
Upgrade your AR-15 with this 5.56/.223 16" Stainless Steel Spiral Fluted Upper Assembly designed for..
-50%
AR-15 5.56/.223 Wylde 16" M-Lok Handguard Upper Assembly, Side Charger
This AR-15 5.56/.223 Wylde 16" M-Lok Upper Assembly is built for performance and versatility. It fea..
-33%
AR-15 5.56/.223 Wylde 16" Stainless Black Claw Premium Upper Assembly – MLOK
The AR-15 5.56/.223 Wylde 16" Stainless Black Claw Premium Upper Assembly is engineered for performa..
-38%
Moriarti AR-15 5.56 16" M4 Carbine Upper | 12" Diamond M-LOK | A2 Flash Hider
Upgrade your AR with strength, style, and reliability. The Moriarti AR-15 5.56 NATO 16" M4 Carbine U..
-38%
Moriarti AR-15 5.56/.223 16" Pencil Upper | 12" M-LOK | 1x7 Twist
Go ultra-light without sacrificing performance. The Moriarti AR-15 5.56/.223 16" Pencil Profile Uppe..
-38%
AR-15 5.56/.223 16" Bull Upper Assembly / 15" MLOK Rail / Black
Elevate your shooting experience with the AR-15 5.56/.223 16" Bull Upper Assembly, featuring a preci..
AR-15 16" 5.56/.223 Blue Diamond Modular Bull Upper Assembly | 10" Mlok
Features:Barrel: 16" 416 stainless steel bull contour barrel with diamond fluting, blue coated with ..
-36%
AR-15 5.56/.223 16" Black Diamond Modular Bull Upper Assembly / Mlok
AR-15 5.56/.223 16" black diamond modular bull upper assembly is offered exclusively by Moriarti Arm..
-45%
AR-15 5.56/.223 16" Blue Diamond Fluted Tactical Upper w/ 12" MLOK & Triport Brake | Moriarti Arms
Bring performance and bold design together with the AR-15 5.56/.223 16" Blue Diamond Tactical Upper ..
-22%
AR-15 5.56/.223 16" stainless steel diamond pulse fluted tactical bull upper assembly
AR-15 5.56/.223 16" stainless steel diamond pulse fluted tactical bull upper assembly. Specs:A3..
-25%
AR-15 5.56/.223 16" Stainless Steel Tactical Bull Upper Assembly / Mlok
AR-15 5.56/.223 16" Stainless Steel Tactical Bull Upper Assembly / Mlok Features:Barrel - 16" 416 st..
-33%
AR-15 5.56/.223 16" stainless steel x-treme fluted bull upper assembly / Mlok
AR-15 5.56/.223 16" stainless steel x-treme fluted tactical bull upper assembly includes:Barrel - 16..
-40%
AR-15 5.56/.223 16" Stainless Straight Fluted Modular Upper Assembly / Bull / Mlok
AR-15 5.56/.223 16" Stainless Straight Fluted Modular Upper Assembly / Bull / Mlok is offered exclus..
-30%
AR-15 5.56/.223 16" yellow diamond modular bull upper assembly
AR-15 5.56/.223 16" yellow diamond modular bull upper assembly is offered exclusively by Moriarti Ar..
-33%
Red Diamond Tactical AR-15 5.56/.223 16" Upper Assembly - M-LOK
Elevate your AR-15 with the Red Diamond Tactical 16" Upper Assembly, designed exclusively for Moriar..