Spikes STU5435MLS Complete Upper 5.56x45mm NATO 16 in Black /Midlength Barrel, 7075-T6 Aluminum Black Receiver, 12 in SAR3 Handguard for AR-15

The Spike's Tactical ST-15 Enhanced 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. This model features 16" with 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, and A2 flash hider.

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Muzzle:	A2 Flash Hider
Barrel Finish:	Black Phosphate
Handguard Finish:	Black
Barrel Length Range:	16" to 16.99"
Firearm Fit:	AR-15
Weight:	4 lbs
Type:	Complete
Gun Platform:	AR-Style
Twist:	1:7"
Handguards:	12" SAR3
Barrel Description:	Mid-Length Steel
Receiver Finish:	Black
Caliber:	5.56x45mm NATO
Thread Pattern:	1/2"x28
Sights:	A2 Front
Model:	Complete Upper
Barrel Length:	16"
Receiver Material:	7075-T6 Aluminum