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.

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.