Remington UMC 300 Blackout 220gr Open Tip Flat Base – 20 Rounds

Remington's UMC line delivers subsonic 300 Blackout performance optimized for suppressed shooting and reduced noise signature. The 220-grain open tip flat base (OTFB) projectile produces minimal sound when paired with a suppressor while maintaining accuracy and stability through standard-twist barrels. This heavy subsonic load cycles reliably in AR-15 platforms chambered in 300 BLK without the crack of supersonic ammunition.

Factory-fresh brass cases and non-corrosive Boxer primers ensure consistent ignition and make these cases ideal for reloading. Available in 20-round boxes or 200-round cases for range sessions or stockpiling. UMC ammunition is manufactured to Remington's standards for function and value in high-volume shooting.

• Caliber: 300 Blackout (.300 BLK)
• Bullet Weight: 220 grains
• Bullet Style: Open Tip Flat Base (OTFB)
• Velocity: Subsonic
• Box Count: 20 rounds
• Case Count: 200 rounds (10 boxes)
• Case Type: Brass
• Primer: Boxer, non-corrosive
• Use: Suppressed shooting, subsonic applications, training