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Spike's Tactical 16" Lightweight LE Complete Upper 5.56
Spike's Tactical 16' Lightweight LE Complete Upper 5.56

Spike's Tactical 16" Lightweight LE Complete Upper 5.56

Part Number:STU5040-M4S
On sale: $559.95
Retail Price:$580.00
You Save:$20.05(3%)
Out of Stock.

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Upgrade to Spike's Nickel Boron BCG [+$74.95]
Upgrade to Magpul MOE Handguard [+$29.95]

Spike's Tactical 16" Lightweight LE Complete Upper 5.56 STU5040


The Spike's Tactical LE series of upper receiver groups is designed to meet the needs of today's law enforcement officer. Every component is carefully manufactured, finished, and tested to meet or exceed applicable Mil-Spec standards and every weapon is backed by the Spike's Tactical Lifetime Warranty. These same upper receiver groups are now available on the commercial market at a price point any shooter can afford.

NOTE:  THIS INCLUDES A BAYONET LUG AND INSTALLED (SCREWED ON) FLASH HIDER. Please check with your local FFL if you have questions regarding legality as we can not be responsible for laws in every state or county (ie. Illinois, NY, CA).


  • 16" Spike's Tactical, 1:7 Twist, Mil-spec Grade Chromoly Vanadium Barrel
  • Extended M4 Feedramps
  • Mil-spec Hard Chrome 5.56 NATO Chamber & Bore
  • 1/2x28 Muzzle Threading
  • Lightweight Barrel Profile, Carbine Gas System
  • Barrel is HP Tested & MP Inspected
  • F-marked A2 Front Sight Base, .625" Pencil Barrel Diameter Gas Seat
  • Spike's Tactical Mil-spec M16 Bolt Carrier Group
  • Bolt is shot peened, HP Tested, & MP Inspected
  • Forged Mil-spec Charging Handle
  • Laser Engraved T-Markings
  • Mil-spec Dry film Lube inside Upper Receiver
  • M4 Handguards
  • A2 Flash Hider


Raw Material: 7075-T6 Forged Upper
Processing: Assembled using Mil-spec assembly grease
Coating: Type III Anodized Black Hardcoat

Length: 16" Barrel

Upper Weight: 3lbs 15 oz with charging handle and bolt carrier group installed


  • (1) Spike's Tactical LE Upper
  • (1) Spike's Tactical Lifetime Warranty

Customer Reviews

5 Stars
Excellent complete upper!!
First of all, it was nearly impossible to find any complete uppers at the time of my purchase but VTS had it and the ordering process was painless. Aaron made sure that I was satisfied and even swapped out the “evil” flash hider for a muzzle brake of my choosing and installed a MOE handguard. The customer service was outstanding. Now for the upper, Spikes’s always makes quality parts. I built a retro style AR and used all Spike’s parts and Magpul furniture. The upper was in excellent condition right out of the box. Fit was perfect, no rattle or looseness. I took it to the range and fired it without jams or troubles the 1st time. Accuracy was excellent and this upper is lightweight compared to my other rifles. I can sling this for days. I definitely recommend this upper. The bottom line is, if you want a no nonsense, straight forward, down to business complete upper...this is it. I’m extremely satisfied with my purchase. Thank you Aaron for running such an excellent business.
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Reviewed by:  from Elk Grove, CA. on 11/10/2020

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