ATI OMNI HYBRID MAXX RIA P3P 5.56X45MM 16 BBL 1:8 10 MLOK ALPHA STK NANO PARTS KIT 30RND – MIlspec AR15 polymer upper and lower Omni Hybrid Maxx. Includes a Nano composite parts kit. Complete rifle weighs 5.5 lbs. – Specs – Caliber: 5.56 NATO – Capacity: 30rnd – Barrel: 16 – Forend: 10 MLOK – Stock: Alpha Stock – FCG: Nano composite parts kit – Color: Black