Spike's Tactical ST-15 LE Complete Upper Assembly 5.56 NATO 14.5" Cold Hammer Forged Barrel Pinned Smith Vortex Flash Hider Mid-length Gas System 9" SAR3 Handguard Flattop Upper STU5420-S9S

Spikes Tactical
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Spike's Tactical creates quality parts, uppers, and complete rifles. Each component is manufactured to Mil-spec standards and are backed by the Spikes Tactical lifetime warranty. This particular upper receiver features a 14.5" pinned cold hammer forged chrome-moly vanadium mil-spec barrel with a 1:7" twist rate. It also features a mid-length gas system with a Spikes SAR3 quad rail, and the Spike's mil-spec M16 bolt carrier group.

Specifications and Features:
FN 14.5" MILSPEC barrel (16 OAL)
Cold Hammer Forged
1:7 Twist
ST Optimum Profile, Mid Length Gas System
Spike's Tactical Mil-spec M16 Bolt Carrier Group
ST SAR rail system
Smith Vortex Flash Hider (pin and welded)
Weight of 4.07lbs