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KO Slugs 4.51mm .177 MK3 (JSB-PL-121)

$19.99

10.03 grains
.177 caliber
4.51 diameter
Hollowpoint
500 count

The JSB KnockOut Slugs MK3 keep the same high-BC slug shape and add a flared rear to improve sealing and stability. In .177 caliber at 10.03 grains and 4.51 mm diameter, they maintain velocity and reduce drift for flatter, more predictable trajectories. The hollowpoint design ensures controlled expansion on impact while the MK3’s flared skirt further stabilizes flight. Each tin contains 500 pieces for plenty of practice or match work.