This amazing 16" complete upper from Foxtrot Mike has all of the expensive features and high-quality workmanship that FM Products is quickly becoming famous for, but at a price tag that is very affordable. This upper is ready to drop in and push pin on your favorite lower and is built to function at the highest level of accuracy, and comfort. Trust me when we say this is not your standard AR upper. Just look at all of these features. This monolithic style Gen II Upper from F.M. is billet cut from aircraft aluminum and features a 16" match grade lightweight 41v50 9mm barrel, capped with a Micro Blast Diffuser. A Picatinny top platform spans the entire length of both the upper and the MLOK rail with an almost seamless transition, making sights and optics mounting simple and easy. This upper comes complete with the bolt carrier group installed. The bolt itself is mil-spec 9310 Alloy Steel w MPI with a 4340 HT carrier in a manganese phosphate finish. This unit is completed in a type 3 hard black anodized finish.