.350 Legend

If you are looking to upgrade your AR-15 or build a new one from scratch, you might consider using a .350 Legend Upper Assembly from Moriarti Armaments. Moriarti Armaments is a reputable firearm parts manufacturer and distributor that offers a wide variety of high-quality products. These upper assemblies come fully assembled and ready to mount to your lower receiver. The .350 Legend caliber is a high-performing round, designed for excellent ballistics and reduced recoil. 



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  • AR-15 .350 Legend  16" Stainless Steel Fluted Upper Assembly / Mlok
    AR-15 .350 Legend  16" Stainless Steel Fluted Upper Assembly / Mlok. - Current variation of barrel flute - straight or spiral, depending on stock availability. Images may not be an exact representation of the product. Length16"ProfileHeavy BarrelTwist1:16FinishStainlessMaterial416R Stai..
    AR-15 .350 Legend  16" Stainless Steel Fluted Upper Assembl...
    $449.95$599.95
  • AR-15 .350 Legend  20" Stainless Steel Tactical Upper Assembly / Mlok
    AR-15 .350 Legend  20" Stainless Steel Tactical Upper Assembly / Mlok - If you're seeking unrivaled performance, look no further than Moriarti Armaments' 350 Legend Upper. This high-quality firearm accessory is the key to unlocking a powerful and precise shooting experience, thanks to i..
    AR-15 .350 Legend  20" Stainless Steel Tactical Upper Assem...
    $299.95$499.95
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  • AR-15 .350 Legend 10.5" Mlok Tactical Upper Assembly
    AR-15 350 Legend 10.5" Mlok Tactical Upper Assembly - Upgrade your standard AR-15 platform to the new 350 Legend cartridge, providing a significant boost in velocity and energy without requiring the purchase of a specialty bolt. Ideal for those seeking a straight wall cartridge hunting experien..
    AR-15 350 Legend 10.5" Mlok Tactical Upper Assembly - Upgrade ...
    $259.95$499.95
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  • AR-15 .350 Legend 12.5" Tactical Upper Assembly / MLOK
    AR-15 .350 Legend 12.5" Mlok Tactical Upper Assembly - The new 350 Legend is an upgrade to your standard AR-15 platform in pistol length. 350 offers a significant increase in velocity and energy without having to buy a specialty bolt. Supercharge your AR-15 in one easy step!Features:Barrel Length: 1..
    AR-15 .350 Legend 12.5" Mlok Tactical Upper Assembly - The new 350 ...
    $269.95$499.95
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  • AR-15 .350 Legend 16" M4 MLOK Upper Assembly | Side Charging Receiver
    AR-15 .350 Legend 16" M4 MLOK Upper Assembly | Side Charging ReceiverBarrel - 16" packerized 4150 CMV. M4 profile. Chambered in 350 legend. 1-16 rh twist. .750 diameter under gas block. M4 feedramps. 5/8x24 thread. Barrel is finished off with flash hider. A3  flat top upper receive..
    AR-15 .350 Legend 16" M4 MLOK Upper Assembly | Side Charging Receiv...
    $399.95$499.95
  • AR-15 350 Legend 16" Mlok Upper Assembly / 15" Blue Mlok / Shroud
    AR-15 350 Legend 16" Mlok Upper Assembly / 15" Blue Free Float - The new 350 Legend is an upgrade to your standard AR-15 platform. 350 offers a significant increase in velocity and energy without having to buy a specialty bolt. Supercharge your AR-15 in one easy step!Features:Barrel Length: 16" Gas..
    AR-15 350 Legend 16" Mlok Upper Assembly / 15" Blue Free Float - Th...
    $299.95$449.95
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  • AR-15 350 LEGEND 16" STAINLESS BLACK CLAW PREMIUM UPPER ASSEMBLY /MLOK
    AR-15 350 LEGEND 16" STAINLESS BLACK CLAW PREMIUM UPPER ASSEMBLY /MLOKBarrel - 16" 416R stainless steel hbar contour barrel. Hardened to 26-32 rc and stress relieved. Chambered in 350 Legend, 1-16 rh twist. Bear Claw spiral flutes.  .750 under gas block. 5/8x24 threads. Barrel is finished ..
    AR-15 350 LEGEND 16" STAINLESS BLACK CLAW PREMIUM UPPER ASSEMBLY /M...
    $299.95$449.95
  • AR-15 350 Legend 16" Tactical Upper Assembly / 15" Mlok
    AR-15 350 Legend 16" Tactical Upper Assembly / 15" Mlok - The new 350 Legend is an upgrade to your standard AR-15 platform. 350 offers a significant increase in velocity and energy without having to buy a specialty bolt. Supercharge your AR-15 in one easy step!Features:Barrel Length: 16" Gas System..
    AR-15 350 Legend 16" Tactical Upper Assembly / 15" Mlok - The new 3...
    $269.95$449.95
  • AR-15 350 Legend 18" Midlength Upper Assembly / 15" Free Float
    AR-15 350 Legend 18"  Upper Assembly / 15"  Free Float - The new 350 Legend is an upgrade to your standard AR-15 platform. 350 offers a significant increase in velocity and energy without having to buy a specialty bolt. Supercharge your AR-15 in one easy step!Features:Barrel Length: 18" G..
    AR-15 350 Legend 18"  Upper Assembly / 15"  Free Float - ...
    $299.95$499.95
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