SKU: ZMRUGA46
UPC: 708279016233
MPN: RUG-A46
The ProMag RUG-A46 delivers 40-round capacity for Ruger Mini-14 rifles chambered in .223 Remington or 5.56x45mm NATO. This extended-capacity magazine serves shooters who want longer strings of fire during range sessions, training drills, or competitive events without constant reloading interruptions. ProMag manufactures this magazine entirely in the United States, backing it with a lifetime warranty against manufacturer defects. For Mini-14 owners looking to supplement their standard-capacity magazines, the RUG-A46 provides a reliable high-capacity option from a dedicated American manufacturer.
ProMag employs a steel/polymer hybrid construction that balances durability with reduced weight. The upper feed tower uses heat-treated steel with a black oxide finish for corrosion resistance and reliable cartridge presentation. The lower housing is injection-molded from a proprietary DuPont Zytel-based polymer, providing impact resistance while keeping overall weight manageable. Internal components include a heat-treated chrome silicone wire spring paired with an injection-molded polymer follower, engineered for consistent feeding throughout the magazine's 40-round capacity. The magazine measures 1.25 x 2.70 x 9.50 inches, fitting the Mini-14's magwell without modification. This hybrid approach addresses the common aftermarket magazine concern of balancing strength at the feed lips with practical carry weight.
Practical applications range from extended plinking sessions where reloading time cuts into trigger time, to tactical training courses that benefit from higher round counts between magazine changes. The 40-round capacity makes this magazine well-suited for property defense setups where a Mini-14 serves as a primary rifle. Pair it with quality .223 Remington or 5.56 NATO ammunition for best results. We stock this alongside other Mini-14 accessories for shooters building out their Ruger platform.
The ProMag RUG-A46 is designed for Ruger Mini-14 rifles chambered in .223 Remington and 5.56x45mm NATO. It will not fit the Mini Thirty, which uses 7.62x39mm, or other caliber variants. Confirm your rifle's chambering before purchasing.
The hybrid design places heat-treated steel at the critical feed tower where cartridges engage the feed lips, ensuring reliable feeding and long-term durability. The polymer lower body reduces overall weight compared to all-steel magazines while maintaining impact resistance during normal handling and use.
Magazine capacity laws vary by state and locality. Several states restrict magazines exceeding 10, 15, or 17 rounds. Check your local and state regulations before ordering. We cannot ship restricted-capacity magazines to jurisdictions where they are prohibited.
ProMag's lifetime warranty covers defects in materials and workmanship for the original purchaser. Normal wear, damage from misuse, or modifications are not covered. Contact ProMag directly for warranty claims with proof of purchase.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
