The Andro Corp Industries 5.56 NATO 10.3-inch M-LOK Complete Upper (brand part no. U556103ML) is a complete, ready-to-run AR15 upper chambered in 5.56 NATO with a 10.3-inch barrel and an M-LOK compatible handguard for mounting lights, grips, or bipods. The 10.3-inch length is a popular choice for short-barreled rifles and AR pistols that balance reliable cycling with a compact overall length. It bolts directly onto any standard mil-spec AR15 lower to complete the rifle. It is a straightforward way to add a proven short-barrel length without piecing components together separately.

Key Specifications

• It is chambered in 5.56 NATO.
• The barrel measures 10.3 inches long.
• It uses an M-LOK compatible handguard for accessory mounting.
• It is built to bolt onto any standard mil-spec AR15 lower receiver.
• It is manufactured by Andro Corp Industries, an AR15 component maker.

Frequently Asked Questions

What lower does this fit? It is built to fit any standard mil-spec AR15 lower receiver.

What caliber is this upper chambered in? It is chambered in 5.56 NATO.

Built by Andro Corp Industries and sold in our AR15 uppers category, it is ready for any mil-spec lower.

Buy the Andro Corp 5.56 NATO 10.3in M-LOK Complete Upper

Upgrade your build with the Andro Corp 5.56 NATO 10.3in M-LOK Complete Upper and get the fit, finish, and function serious shooters expect. Backed by our team at Schaefer Defense, It ships fast from our Lubbock, Texas gun shop, with insured delivery straight to your door.