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 16" 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 F-marked A2 Front Sight Base, Spike's Bar2 9" Mid-length free float handguard, and the Spike's mil-spec M16 bolt carrier group.
Specifications and Features:
Spikes Tactical Upper Receiver STU5035-R9S
5.56mm NATO (accepts .223 Remington)
Cold hammer forged, Chrome-moly vanadium mil-spec barrel
Mid-length gas system
F-marked A2 Front Sight Base
Spikes Tactical mil-spec M16 bolt carrier group
9" mid-length BAR 2 free float rail system
A2 Flash hider
Upper receiver is 7075-T6 forged flattop
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