Micro ARP 300 Blackout
Micro ARP 300 Blackout builds are designed to deliver exceptional performance from compact AR platforms. The 300 BLK cartridge was specifically developed for short barrels, making it one of the most popular choices for Micro ARP pistols, uppers, and custom builds.
Whether you're building a compact range firearm, home-defense platform, or suppressor-ready setup, 300 Blackout provides excellent energy, versatility, and reliability in short-barrel configurations.
Browse our selection of Micro ARP 300 BLK pistols, uppers, barrels, and components engineered for compact performance.
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MA-15 Micro ARP 4.5" .300 Blackout Semi-Auto Pistol – Color Choice
The Moriarti Armaments MA-15 Micro Mini Series is a compact, semi-automatic AR-15 pistol chambered i..
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Moriarti MA-15 5″ Cookie Series Pistol – SBA3 | Choose Caliber
The Moriarti MA-15 Cookie Series is a compact, AR-platform semi-automatic pistol offered in three ch..
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Moriarti MA-15 5″ Micro ARP Pistol – SBA5 / Magpul | Choose Caliber & Color
The Moriarti MA-15 5″ Micro ARP is a compact AR-15 platform pistol offered in three caliber configur..