PSA 11.5" Carbine-Length 5.56 1/7 Phosphate 10.5" Lightweight Hex M-Lok Upper W/MBUS Sight Set & Romeo MSR No BCG or CH

Barrel: 11.5" 4150V Chrome Moly vanadium steel, nitride coated and chambered in 5.56 NATO with a 1 in 7" twist. The carbine-length gas barrel is finished off with a PSA 10.5" Lightweight Hex Full Picatinny M-Lok Free Float Rail, a low profile gas block, and a PSA A2 Flash Hider.Upper: Forged 7075-T6 A3 AR upper is made to MIL-SPECS and hard coat anodized black for durability. Featuring a mil-spec finish, these uppers are made for us right here in the USA by a mil-spec manufacturer.Includes: Magpul MBUS Back Up Sights & Sig Sauer Romeo - MSR Red Dot SightSig Sauer Romeo MSR Red Dot Sight:The ROMEO-MSR is a sealed compact red dot or green dot sight intended for MSR, carbine, shotgun, and air rifle. Brightness is adjusted with a top-mounted rotary dial, featuring 10 daytime and 2-night vision settings for quick target engagement in any condition.Features:Dependable IPX-7 waterproof and fog-proof performanceOver 20,000 hours runtime on a CR1632 batteryTop loading battery compartment with integral brightness control featuring 10 daytime and 2 NV settingsUltra-compact size and weight with unlimited eye relief and parallax-free operationAircraft-grade aluminum housing and mountSlipover, see-through flip-backs