Ultra-Reliable Feeding. Built for the MRX.

The Blackcreek Labs MRX 20 Round Magazine is purpose-built for the MRX Bison and MRX Jackal platforms. Engineered with a proprietary high-strength polymer body, it features extended feed lips, a no-tilt follower, and a stainless steel spring for smooth, reliable feeding—every time.

Unlike AR-15 mags, the MRX MAG’s straight-body design eliminates bullet binding while its follower stop ledges allow the bolt to push forward even when the mag is empty and seated. It’s simple, dependable, and made to last.

Key Features:

• Proprietary High-Strength Polymer – Tough, impact-resistant construction

• 20-Round Capacity – Straight-body design ensures no bullet binding

• Extended Feed Lips & No-Tilt Follower – Smoother cycling under pressure

• Follower Stop Ledges – Bolt can push forward on empty mag

• Not AR-15 Compatible – Precision-fit for the MRX Bison & MRX Jackal

• Stainless Steel Spring – Corrosion-resistant and long-lasting

Why We Like It:

• Purpose-built to complement the MRX platform’s unique design

• Strong, simple, and extremely reliable in the field

• Designed to feed cleanly even under stress or adverse conditions

• Maintains tight lockup and consistent performance