
Availability: In Stock
If you're building or upgrading an AR-15, a Lantac USA upper parts kit fills the gaps between your receiver and bolt carrier group with mil-spec components you can trust. This M-SPEC upper parts kit includes everything needed to complete the upper receiver assembly on an AR-15 style rifle—the ejection port cover mechanism, forward assist assembly, and all the springs and pins that make them function. Rather than hunting down individual parts from different sources, a complete upper parts kit from Lantac keeps your build moving and ensures compatibility across the board.
Lantac manufactures these components to military specifications, meaning they're built from the correct materials, heat-treated properly, and finished to handle real-world use. Whether you're a precision rifle builder, a competition shooter dialing in a new setup, or a hunter assembling a dedicated hunting rifle, having quality upper parts matters. You'll feel the difference between mil-spec parts and bargain-basement alternatives when you're cycling rounds or depending on your rifle in the field.
Made in the USA, this kit comes with a lifetime warranty—Lantac stands behind their work. It's the kind of piece-of-mind guarantee you want when you're investing time and resources into a build that matters to you.
An upper parts kit contains the small but essential components that finish out your AR-15 upper receiver. The ejection port cover keeps debris out when the rifle is stored or slung, and the forward assist helps chamber a round if needed. These parts are critical to a complete, functioning upper assembly.
This kit is designed for AR-15 style rifles. If you're building or rebuilding an AR-15 upper receiver, these M-SPEC components will integrate with your build.
The kit includes all necessary components to assemble the ejection port cover and forward assist mechanisms. Consult your upper receiver assembly manual or a gunsmith if you need detailed installation guidance.
Lantac backs this kit with a lifetime warranty. Contact Lantac USA directly for specific warranty terms and any service inquiries.

SKU: 167513758 • Weight: 0.2oz




Availability: In Stock
If you're building or upgrading an AR-15, a Lantac USA upper parts kit fills the gaps between your receiver and bolt carrier group with mil-spec components you can trust. This M-SPEC upper parts kit includes everything needed to complete the upper receiver assembly on an AR-15 style rifle—the ejection port cover mechanism, forward assist assembly, and all the springs and pins that make them function. Rather than hunting down individual parts from different sources, a complete upper parts kit from Lantac keeps your build moving and ensures compatibility across the board.
Lantac manufactures these components to military specifications, meaning they're built from the correct materials, heat-treated properly, and finished to handle real-world use. Whether you're a precision rifle builder, a competition shooter dialing in a new setup, or a hunter assembling a dedicated hunting rifle, having quality upper parts matters. You'll feel the difference between mil-spec parts and bargain-basement alternatives when you're cycling rounds or depending on your rifle in the field.
Made in the USA, this kit comes with a lifetime warranty—Lantac stands behind their work. It's the kind of piece-of-mind guarantee you want when you're investing time and resources into a build that matters to you.
An upper parts kit contains the small but essential components that finish out your AR-15 upper receiver. The ejection port cover keeps debris out when the rifle is stored or slung, and the forward assist helps chamber a round if needed. These parts are critical to a complete, functioning upper assembly.
This kit is designed for AR-15 style rifles. If you're building or rebuilding an AR-15 upper receiver, these M-SPEC components will integrate with your build.
The kit includes all necessary components to assemble the ejection port cover and forward assist mechanisms. Consult your upper receiver assembly manual or a gunsmith if you need detailed installation guidance.
Lantac backs this kit with a lifetime warranty. Contact Lantac USA directly for specific warranty terms and any service inquiries.
SKU: 167513758 • Weight: 0.2oz
