ProMag Magazine FN Scar 17 308 Winchester 50-Round Drum Polymer Black

The ProMag 50-round drum magazine for FN SCAR 17 in .308 Winchester gives you serious capacity for extended shooting sessions at the range or in the field. Built from a proprietary DuPont Zytel polymer composite, this drum is engineered to handle the power of .308 Winchester while keeping your rifle topped up through long strings of fire. If you're running an FN SCAR 17 and want a high-capacity option that goes beyond standard box mags, this polymer drum delivers the round count without the weight penalty of steel.

ProMag's design blends modern polymer injection molding with proven metal components where it counts. The magazine upper tower includes a full-length steel internal insert—stamped and welded the same way factory magazines are made—to ensure reliable feed and durability under hard use. The follower is molded for consistent spring tension, and the magazine spring itself is heat-treated stainless steel, so corrosion and fatigue aren't concerns even if you leave it loaded for extended periods.

This is a USA-made magazine backed by a lifetime guarantee against manufacturer's defects. Whether you're zeroing a new load, running competitions, or just want faster reloads during a long day at the range, the 50-round capacity keeps you in the fight longer and cuts down on magazine changes.

Key Features

• 50-round capacity for .308 Winchester in FN SCAR 17
• Proprietary DuPont Zytel polymer construction for durability and weight efficiency
• Full-length steel internal insert for reliable feeding and structural integrity
• Heat-treated stainless steel magazine spring resists corrosion and fatigue
• Molded follower for consistent performance
• Made in USA
• Lifetime warranty against manufacturer's defects

Specifications

Frequently Asked Questions

Will this 50-round drum magazine work with my FN SCAR 17?

Yes—this drum is specifically designed for the FN SCAR 17 in .308 Winchester. Always test-load and function-check any new magazine in your rifle before relying on it in the field or at competition.

How durable is the polymer construction compared to steel drums?

The magazine uses a proprietary DuPont Zytel polymer compound reinforced with a full-length steel internal insert in the upper tower. This hybrid design gives you the weight savings of polymer while maintaining the structural support of steel in high-stress areas. The magazine spring is heat-treated stainless steel for long-term reliability.

Is this magazine made in the USA?

Yes, the ProMag 50-round drum is manufactured in the USA and is backed by a lifetime warranty against manufacturer's defects.

What comes in the box?

You receive the 50-round drum magazine. No other components or accessories are included.