This powerful AR-STONER™ A3 Upper Receiver Assembly in 6.5 Grendel is designed to provide all the function, style and affordability for today’s modern sporting rifle shooter. It features a fluted 20" 416R stainless steel, heavy contour barrel with 1:8 twist. The A3 upper attaches to virtually any standard AR-15 lower receiver. Additional features include a rifle-length gas system, 5R rifling, stainless steel M2 flash hider, and a lightweight 15” free float M-Lok Handguard. The handguard features integrated QD sling mounts with a sleek design while maintaining strength and ergonomics. Finish building the gun of your dreams with this AR-STONER™ AR-15 A3 Upper Receiver Assembly in 6.5 Grendel.

Due to high demand and our desire to serve as many Customers as possible, we are currently limiting the quantity that each individual Customer may order.

One Time Offers represent special one-time purchases where MidwayUSA has negotiated a reduced price and then passed the savings on to the Customer. One Time Offers have limited quantities available and usually once they are sold out, they are not offered again.

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