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Top AR Pistol Calibers

Top AR Pistol Calibers

Posted by MCS GEAR UP on Aug 21st 2025

If you’re looking at AR pistol uppers, choose your caliber wisely. Different calibers will perform differently out of a smaller, short
About .300 BLK and .300 BLK Uppers

About .300 BLK and .300 BLK Uppers

Posted by MCS GEAR UP on Jul 31st 2025

While it may be the case that the majority of AR style platforms out there are built around either the .223 or 5.56, or around hybrid uppers