The Lantac USA M-SPEC Upper Parts Kit for AR-15 style rifles (brand part no. 01-PKIT-UP) bundles the small parts you need to finish an upper. It is manufactured to the highest quality standards, using correct materials, heat treatments and finishes to comply with up to date military specifications. The kit covers both the ejection port cover and the forward assist, so a bare receiver can be fitted in one purchase. It is made in the USA and backed by a lifetime warranty. For a builder, it keeps a parts bin simple.

Key Specifications

• The kit includes an ejection port cover, which keeps debris out of the action.
• It includes an ejection port cover rod, the pin the cover pivots on.
• It includes an ejection port cover spring, which snaps the cover open when the bolt cycles.
• It includes a forward assist assembly, for seating a round that has not fully chambered.
• It includes a forward assist spring, which returns the plunger after use.
• It includes a forward assist roll pin, which retains the assembly in the receiver.
• The platform is AR-15 style rifles, so it matches the most common upper receiver pattern.
• The build standard is M-SPEC, meaning materials, heat treatments and finishes follow current military specifications.
• It is made in the USA by Lantac USA.
• It carries a lifetime warranty from the manufacturer.

Frequently Asked Questions

What is in the kit? The kit contains an ejection port cover, cover rod and cover spring, plus a forward assist assembly with its spring and roll pin.

Which rifles is it for? It is the M-SPEC upper parts kit for AR-15 style rifles.

Is it made to a standard? Yes. Lantac manufactures it with correct materials, heat treatments and finishes to comply with up to date military specifications.

Buy the Lantac M-SPEC AR-15 Upper Parts Kit

Building an upper means chasing a handful of tiny parts that all have to be right. This kit puts the dust cover and forward assist hardware in one package built to military specifications. Order it from our Lubbock, Texas gun shop for fast direct shipping, and browse more AR upper parts for your build.