SKU: AMI300B155-OTM-A20
UPC: 818778025121
MPN: 300B155-OTM-A20
Ammo Inc 300blk 155gr OTM ammunition delivers reliable performance for tactical operators, law enforcement, and precision shooters who demand subsonic ballistics in an AR platform optimized for suppressed fire. The .300 Blackout cartridge has become the standard for short-range engagement where velocity control and hearing protection converge, making 155-grain subsonic rounds the preferred choice for CQB (close-quarters battle) scenarios, home defense, and sound-suppressed duty applications. This 20-round per box offering from Ammo Inc's Compete line ensures you have consistent ammunition available for training cycles and operational readiness.
The 155-grain open-tip match (OTM) projectile design provides superior accuracy and barrier performance through controlled expansion and consistent bullet geometry. Manufactured with clean-burning powder and brass cases, this ammunition minimizes fouling in suppressed firearms where unburned powder and pressure curves demand precision loading. The OTM configuration balances velocity for subsonic operation (below 1,125 feet per second) while maintaining the ballistic coefficient necessary for reliable terminal performance at 100–300 yard distances typical of tactical engagements. Ammo Inc's quality control ensures minimal velocity spread, critical when accuracy and repeatability determine operational success.
Operators running suppressed AR-platform .300 Blackout uppers will find this load optimized for both accuracy work and duty applications where noise signature reduction is non-negotiable. Law enforcement, military, and civilian tactical shooters benefit from the predictable recoil impulse and reduced flash signature inherent to subsonic 155-grain ammunition. Compatible with all standard AR-15 .300 Blackout chambers and magazine systems, this ammunition pairs seamlessly with suppressor-equipped rifles for training, qualification, and deployment. Stock this Ammo Inc offering for consistent, field-proven performance when precision and reliability matter most.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.