Description
The LAR-6.8 is Rock River Arms’ lower receiver designation for its 6.8mm Remington SPC (SPC II chamber) rifles. It’s a forged lower from Rock River Arms of Colona, Illinois, known for quality AR-pattern rifles. RRA has since moved its 6.8 rifles onto the multi-caliber LAR-15M lower, which makes this caliber-marked LAR-6.8 a harder-to-find piece for anyone building a dedicated 6.8 SPC rifle.
Specifications
- Manufacturer: Rock River Arms
- Model: LAR-6.8
- Construction: forged
- Platform: AR-15 pattern
Good to know
- 6.8 SPC rifles need 6.8-specific magazines.
- The lower receiver is the serialized, regulated part of an AR. It ships only to a licensed FFL dealer. Buyer must be 21+ and pass a background check at the dealer. You’ll enter your dealer’s details at checkout.


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