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10.5" 5.56 Mel LumaShark(R) Upper
On Target With
Savings Of
$380.00
Original Price $829.99
Sale Price $449.99
Hardened Arms is proud to offer the ultimate AR-15 Pistol or SBR upper This AR-15 upper is designed to allow the shooter the ability to light up the night with our patented_LumaShark(R) Illuminated, weaponized, 12" free float handguard whose patented features have eliminated the need for bulky bolt on flashlights on the AR15 platform.The Lumashark is the ultimate tactical AR15 handguard market today. We start with T6061-T6 aluminum and machine tubes in house on our state of the art CNC machines into the grip to integrate the lighting system into the rail. The Lumashark is a lightweight comfortable rail that protects and integrates the brightest of CREE 1150 Lumen LED lights in tandem. This system is not only staggeringly bright  its dual bulb LED system provides complete redundant dependability.

This rail lighting system is packaged here with a 10.5 inch 4150 CMV Hardened Arms tactical length barrel to provide the ultimate AR upper to light up the night for home defense or LEO night work.

The Hardened Arms Lumashark(R) upper is compact, lightweight and comfortable to hold. There is no need to change your grip or stance when using it. The rail had M-Lok features at 3:00, 6:00 and 9:00 and can accomodate a variety of accessories such as bipods and lasers.

The illumination system runs on 4 CR123a batteries, standard or rechargeable. Bulbs are threaded and O-ringed to provide complete waterproofing to 60 feet. This O-ring system also keeps sand,dirt and dust out of the inside of the lights. Infrared and low Lumen light bulbs are available as optional items.
 
  • Hardened Arms M4 Feed Ramp Flat Top Receiver
  • Black anodized mil-spec finished upper receiver
  • Feed ramps for increased feeding reliability on barrel and upper
  • Laser etched T-Marked upper receiver
  • Chrome Moly 4150- 5.56 High End Barrel
  • Black Melonited Finish
  • Chambered in 5.56 NATO (will also fire .223 ammo)
  • 10.5 556 barrel with M4 Extension
  • .750" diameter at gas block
  • 1/2x28 threaded muzzle/barrel
  • Low profile gas block
  • Barrel dimpled to secure gas block
  • Carbine length gas system
  • A2 flash hider
  • LumaShark(R) hand guard

NOTE: PHOTO shows OPTIONAL LMC muzzle device which is available for an additional 79.00 add. This sale package ships with a standard flash hider. 

Upper Fits mil-spec AR15 lower receivers.

Hardened Arms uppers are high end, accurate, head spaced, inspected and test fired prior to shipping. They are built using stringent specs, top quality parts and procedures to ensure maximum reliability and performance.

You are responsible for knowing your state laws regarding barrel lengths, pistol and short barreled rifle restrictions. A 20% restocking fee will apply if you cancel anytime after ordering or if you can not take delivery due to state restriction. Dealer programs are available on our website. Two year warranty against manufacturer defects. Finishes will wear with use, no warranties apply to finish wear.
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4150CMV Barrel Steel
Whether starting with our 4150CMV machine gun barrel steel or highly refined 416R stainless steel our barrels are a cut above the rest. Engineered for accuracy and durability they are double nitrogen stress relieved and sodium nitrate coated/melonited (raw stainless steel is polished with melonited extensions). Index pins that lock into the upper receiver are pinned into the barrel through the extension on melonited barrels meaning the extension will never come loose. Machined in house on state of the art CNC equipment we deliver a barrel with every spec carefully controlled for peak performance.
 
Rail Lock Free Float Handguard
Machining our handguards in house provides us the opportunity to integrate features not found on most rails in the industry. Our rail lock feature, is designed to dovetail around your upper reciever insexing to insure a perfectly aligned rail that extends over the end of the upper reciever enough to do away with the unsightly gap found on lesser quality rail to receiver match ups. Combined with 6061-T6 aluminum with class II type III, hard coat anodized finish to match our uppers, fit and finish are top notch. Hardened Arms has many rail styles to choose from that are both stylish and functional. Our handguard offerings include quad rails, reduced weight rails, ergonomic smooth rails, skinny competition rails and our innovative patented Lumashark(R) illuminated rail with high lumen lights built in. Hardened Arms rails come in a variety of lengths and choices to meet your mission specific needs. .
 
Attention to detail.
It's the attention to detail that sets Hardened Arms apart. Items such as our machined in house 'Jam Nut' ensure ease of changing muzzle devices and indexing flash hiders while being fully re-useable. Crush washers are a thing of the past as they are single use and can induce stress and cause problems if used improperly. Bull barrels use shims to time your muzzle device without adding to the diameter of the already rigid barrel.

Alignment dimples are also machined into your barrel at the same time the gas port is drilled to provide 100% accurate positioning of your gas block and to keep it securely in place in spite of recoil. We machine our gas blocks and adjustable gas blocks right here from 4150 US barrel steel to give you the strongest and most durable product possible..
Hardened Arms uppers are high end, accurate, head spaced, inspected and test fired prior to shipping. They are built using stringent specs, top quality parts and procedures to ensure maximum reliability and performance.

You are responsible for knowing your state laws regarding barrel lengths, pistol and short barreled rifle restrictions. 20% restocking fees if you cancel anytime after you order or can not take delivery due to state restriction. Dealer programs are available on our website. Two year warranty against manufacturer defects. Finishes will wear with use, no warranties apply to finish wear. Fits any mil-spec AR15 lower receiver.
 
515 Tucker Ave Friday Harbor, WA 98250 | sales@hardenedarms.com
Phone: 425-530-0837