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You are here:Home > AR15 STORE > AR15 Complete Uppers > Spike's Tactical
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Spikes Tactical 16" ST-15 M4 LE Upper Receiver - 5.56x45NATO Spikes Tactical Upper (5.56) 16" M4 LE w/9" BAR2 Rail Spikes Tactical Upper (5.56) 14.5" (16" OAL) Midlength Lightweight LE w/ 12" SAR3 rail w/ Dynacomp

Our Price:
$529.00
In Stock
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Our Price:
$699.00
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(5)

Our Price:
$972.00
In Stock
Spikes Tactical 16" ST-15 M4 LE Upper Receiver - 5.56x45NATO - STU5025-M4S Spikes Tactical Upper (5.56) 16" M4 LE w/9" BAR2 Rail STU5025-R9S Spikes Tactical Upper (5.56) 14.5" (16" OAL) Midlength Lightweight LE w/ 12" SAR3 rail w/ Dynacomp - STU5050-S2D

The Spikes Tactical 16" M4LE Upper Receiver is a fully Mil-Spec, 5.56NATO chambered upper receiver ready for installation to any Mil-Spec AR-15 lower receiver. Includes the Spikes Tactical Phosphate M16 bolt carrier group.

  • Spike's Tactical 16", 1:7 Twist, Mil-spec Barrel
  • M4 Barrel Profile, Carbine Length Gas System
  • ST Micro Gas Block, .750" Diameter Gas Seat
  • Spike's Tactical Mil-spec M16 Bolt Carrier Group
  • ST BAR Rail System
  • A2 Flash Hider
Spike's Tactical 14.5" Lightweight barrel with Spike's Dynacomp flash surpressing muzzle brake.  Features a 12" SAR3 rail.
Spike's Tactical ST- Enhanced Upper- 16" Mid-Length w/ Handguard and FSB LImit 1 Spikes Tactical Upper (5.56) 16" M4 LE w/7" BAR2 Rail & FSP Spike's Tactical 16 Inch Midlength LE Upper (5.56)

Our Price:
$680.00
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(6)

Our Price:
$755.00
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(1)

Our Price:
$590.00
(Out of Stock)
(18)
Spike's Tactical ST- Enhanced Upper- 16" Mid-Length w/ Handguard and FSB STU5435-MLS Spikes Tactical Upper (5.56) 16" M4 LE w/7" BAR2 Rail & FSP STU5025-R7S Spike's Tactical 16" Midlength LE Upper (5.56) STU5035-MLS
  • FN 16", 1:7 Twist,Cold Hammer Forged, Mil-spec Barrel
  • ST Optimum Profile
  • Mid Length Gas System
  • F-marked A2 Front Sight Base
  • .750" Diameter Gas Seat
  • Spike's Tactical Mil-spec M16 Bolt Carrier Group
  • Mid Length Handguards
  • A2 Flash Hider
  • Weight of 4.07lbs
  • Spike's Tactical Lifetime Manufacturer Warranty
The Spike's Tactical ST-15 LE upper line-up is designed as a fully Mil-spec compliant upper series for law enforcement. This same level of quality and performance is now available to everyone, all at a price range that is affordable to shooters of any budget. Each component is manufactured to Mil-spec standards and backed by the Spike's Tactical Lifetime Warranty.


  • Spike's Tactical 16", 1:7 Twist, Mil-spec Barrel
  • Gov't Barrel Profile
  • Mid Length Gas System
  • F-marked A2 Front Sight Base
  • .750" Diameter Gas Seat
  • Spike's Tactical Mil-spec M16 Bolt Carrier Group
  • Mid Length Handguards
  • A2 Flash Hider