FAQ Category: Parts

Finding the right parts.

Which LR-308 Upper should I use?

LR-308 uppers are not as simple as AR-15 uppers. There are a number of standards. My LR-308 Super Lowers are designed to use the LR-308 / DPMS standard. Unfortunately, not all companies properly name their uppers, so care is needed. Bear Creek Arsenal, Aero Precising, and KAK all make LR-308 uppers that will work with …

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What AR-15 upper should I use?

This depends on what Super Lower you want to print. The single rib Super Lower will work with almost any AR-15 upper receiver. However, the double rib lower must be used with slick side uppers that do not have a forward assist. Mil-Spec uppers will work with the single rib lower, as will Aero Precision …

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