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Same as the other one, short action cartridges that fit normal magazines just feed through the lower and the upper is what is specific to each cartridge
Dennis, Great lower for whatever you want to build. Pick your caliber. Machined to Military Specifications & Standards and marked "Multi-Cal" to be used with multiple calibers on any AR-15 platform.
Dennis, "Multi Cal" means this lower can accommodate several different caliber uppers such as 223/5.56 , .458 SOCOM, .50 Beowolf, 7.62x39, 6.5mm Grendel, 300 AAC etc.
A Multi caliber lower can accommodate several different caliber uppers such as 223/5.56 , .458 SOCOM, .50 Beowolf, 7.62x39, 6.5mm Grendel, 300 AAC
