Breek Arms Plan B Sentinel Caged Flash Hider, 5.56

The Sentinel is a closed-tine, fully shrouded design for superior flash suppression and to reduce snagging on gear. Built for Plan B mounts and pin-and-weld builds, it delivers rock-solid alignment, compact length, and NVG-friendly signature reduction.

• Weight: 2.2oz (223/556), 1.8oz (30 cal)
• Overall Length: 2.15"
• Material: 4140 Hardened Steel, Nitride
• Thread Pitch: 1/2x28TPI (223/556), 5/8x24TPI (30 cal)
• Caliber: 223/5.56, 30 cal
• 9mm compatible (exit hole = 0.369 inches)
• Suppressor Mount: Plan B / Atlas
• Peel Washer Included
• Designed & Manufactured in America
• Engineered to be pinned & welded on 14.5" barrels to meet the 16" Federal minimum length requirement