Mill Armory is home to one of the largest selections of AR 15 Build Kits in the
industry with components from some of your favorite manufacturers. Our AR-15
Build kits come with everything you need to complete your project and head out
to the range. These Build kits include the follow items. Assembled Upper
Receiver, Bolt Carrier Group and Charging Handle, Lower Receiver Parts Kit,
Buffer Kit and Buttstock.
Receiver includes a MILSPEC AR15 A3 Upper with the forward assist and ejection
port cover installed. The upper features MIL-A-8625
Type III Class 2 Anodizing (meets military specs). The barrel is 4150 CMV steel
and features either a phosphate coating or nitride depending on the item you
choose. Our gas system parts are CNC Machined to perfection and offer a nice
tight fit on the barrel. Our gas tubes are stainless steel and fit perfectly into
the gas block to prevent any blow by and loss of gas. The AR15 Builders Kit
typically comes with an A2 Flash hider but you can choose a different one from
the Muzzle Devices section of the site. Finally, the Hand Guards are 6061 T6
Aluminum and can be found in either Keymod or MLOK depending on the Kit you choose
come in 7” Handguards up to 15” Handguards.
Parts Kits are 100% Made in the USA which is not typical anymore. Each of the
pins, springs and metal parts perfectly within spec and will make your assembly
easy. This kit includes all of the small parts needed as well as the Fire
Control group. Our Buffer System Parts include the Tube, Buffer Spring, Buffer,
End Plate and Locking Ring. Then they come with a standard Carbine buttstock.
This kit includes
everything you need to build your new AR15 Rifle minus the Lower Receiver which
can be found at your local dealer. Shop today!