Complete your AR-15 upper receiver with the Lantac M-SPEC UPK AR15 Upper Parts Kit — a premium mil-spec quality kit engineered for reliability, durability, and perfect fit. Manufactured to the highest standards using correct materials, proper heat treatments, and military-compliant finishes, this Upper Parts Kit (UPK) delivers true M-SPEC performance at an exceptional value. Ideal for new builds, repairs, or upgrades, it ensures smooth operation of essential upper components.
Kit Includes:Ejection Port CoverEjection Port Cover RodEjection Port Cover SpringForward Assist AssemblyForward Assist SpringForward Assist Roll Pin
Key Features & Technical Specifications:
- M-SPEC Quality: Built to current military specifications with precise materials and heat treatments
- Compatibility: Designed for all standard AR15 style rifles and upper receivers
- Finish: Mil-spec compliant protective finishes for corrosion resistance and longevity
- Warranty: Lifetime Warranty
- Origin: Proudly Made in the USA
Whether you’re assembling a new AR-15, replacing worn parts, or building a duty-grade rifle, the Lantac M-SPEC Upper Parts Kit provides the essential components you need for reliable function. These aren’t cheap aftermarket parts — every piece is held to strict quality standards so you can trust your rifle when it matters most.
Why Choose the Lantac M-SPEC UPK?True mil-spec materials and manufacturing processesComplete set of high-wear upper componentsPerfect fit and smooth operationLifetime warranty for peace of mindExcellent value for professional and recreational builders
Upgrade your AR-15 upper today with the Lantac M-SPEC AR15 Upper Parts Kit — dependable performance you can count on.
By purchasing LanTac AR-15 M-Spec Upper Parts Kit Black from our online store, you are guaranteed to receive a high-quality item. We work with trusted brands to offer shooting and hunting enthusiasts, both amateur and professional, quality products at a reasonable price. Choosing to buy from us means opting for quality and practicality
The actual appearance of the product may differ from the image on the website. For additional information about payment, delivery, and product specifications, please contact us by phone or email.
