Mag Ruger Sr1911 45acp 8rd Sts

The Mag Ruger SR1911 45ACP 8rd STS magazine is a factory-original component engineered for shooters who demand absolute reliability in their 1911 platform pistol. Built by Ruger's manufacturing precision, this 8-round magazine serves law enforcement, military, and civilian operators who rely on the legendary .45 ACP cartridge for duty, competition, or personal defense. Whether you're running backup magazines for duty carry, stocking spares for range sessions, or building redundancy in your firearms collection, a factory magazine from the original manufacturer ensures proper feeding, extraction, and durability.

This magazine features a robust steel body construction paired with a polymer base plate—a proven combination that balances weight, corrosion resistance, and impact absorption. The steel tube maintains rigid dimensional tolerances critical for consistent chambering and feed reliability across extended shooting sessions, while the polymer base plate absorbs impact energy during reloads and malfunction clearances without cracking or deforming. The 8-round capacity provides optimal balance between magazine thickness and firepower, making it manageable in IWB or duty holsters while delivering adequate ammunition for defensive encounters. Ruger's high-quality manufacturing ensures tight spring tension and follower geometry that prevents rounds from tilting or binding—a critical factor in .45 ACP feeding, where cartridge diameter and case length demand precision engineering.

This magazine is fully compatible with all full-size Ruger SR1911 models and standard 1911 platform pistols chambered in .45 ACP, making it a versatile inventory piece if you operate multiple M1911 variants. Law enforcement agencies running Ruger duty pistols should prioritize factory magazines to eliminate compatibility questions during qualification or duty cycles. Competition shooters benefit from factory reliability during sustained fire events, while defensive carriers value the peace of mind that comes with OEM components. Proper maintenance—occasional unloading and inspection for debris—preserves magazine performance for decades of service.