Umarex Practice Rubberballs .50 cal are engineered for MagFed training, scenario drills and team exercises. Weighing approximately 1.23 g each, these hard-rubber balls deliver consistent feeding, controlled impact and repeatable performance even under intensive training conditions. The 500-piece jar format provides extended supply for training academies, simulation events and squad drills, minimizing reloading interruptions and improving logistics during sessions.

Optimized for non-lethal training use, these rubberballs benefit from simple care and storage (keep dry, silicone lubrication if needed) to ensure long-term reliability.

Technical features & specifications

Caliber: .50 cal (≈12.7 mm)

Approx. weight: 1.23 g each

Type: hard rubber balls (training rubberballs)

Pack size: 500 pcs (jar)

Recommended use: MagFed training, scenario drills, team exercises

Benefits: uniform loading, controlled impact, high repeatability

Package contents

500 × Umarex Practice Rubberballs .50 cal (jar)

Warnings and maintenance

Do not modify, deform or alter the balls; alterations can impair safety and performance.

Use only in markers/devices compatible with .50 cal training ammo and comply with local regulations.

Do not shoot at people without adequate personal protection (eye and face protection); even non-lethal rounds can cause injury.

Store in a cool, dry, ventilated place; avoid prolonged exposure to heat or moisture that could deform the product.

For improved feeding and performance, apply a light silicone lubricant to contact surfaces if necessary.

Keep out of reach of children; not a toy.

Dispose of packaging and residues according to local regulations for plastic waste.