A reliable magazine is a simple upgrade that changes how you train at the range. For shooters focused on repeatable accuracy, consistent feeding and predictable handling from spare mags make practice sessions more efficient and safer.

C PRODUCTS DEFENSE CPD DURAMAG SPEED is a 20 round, .300 Blackout magazine built for AR-15 platforms. It’s offered at an accessible price of $13.49, making it an economical spare for dedicated range use and load‑out optimization. Shop this product

Design and compatibility

The Duramag Speed nomenclature signals a magazine designed for quick handling and consistent seating in AR‑15 receivers. This 20 round configuration for .300 Blackout balances capacity and ergonomics: it’s lower profile than 30‑round mags but still gives extended strings of fire for drills. As a C Products Defense offering with model variations available, it’s intended to fit standard AR‑15 magwells chambered or adapted for .300 Blackout.

Why .300 Blackout matters for the range

.300 Blackout delivers versatility: it runs supersonic rounds for mid‑range accuracy and heavier subsonic bullets for suppressed shooting. For range shooters, that means practicing with a single platform across multiple load types. A dedicated .300 Blackout 20‑round magazine like this one reduces the chance of feeding anomalies that can occur when mixing calibers or using mismatched magazines.

For detailed specs and to confirm compatibility with your upper, View product details and pricing.

Performance, handling, and value

On the range, a dedicated mag that seats reliably and offers a predictable release makes repetitions cleaner and faster. The 20‑round Duramag Speed is a practical trade‑off for controlled drills, magazine changes, and handling work. At $13.49 per unit, it’s an affordable way to expand magazine count without sacrificing fitment in AR‑15 receivers set up for .300 Blackout.

If you need a dependable spare for dedicated .300 Blackout range sessions or for a dedicated AR‑15 upper, this mag is a cost‑effective option. Click to check availability and complete your kit: Check current availability.

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