Rock Island Armory 51417MA GI Standard .45 ACP 4.2" 9-Round 1911 Pistol

The Rock Island Armory 51417MA GI Standard .45 ACP 4.2" 9-Round 1911 Pistol represents a direct lineage to the proven military platform that has served law enforcement and armed forces for over a century. Built by Armscor, this full-size 1911 delivers the stopping power and reliability demanded in defensive and duty applications. Whether for concealed carry by trained professionals, home defense, or range training, this GI-spec variant maintains the ergonomic and ballistic advantages of the .45 ACP cartridge in a time-tested profile.

The 4.2-inch barrel balances velocity retention with manageable recoil impulse, delivering consistent shot placement downrange—critical for tactical precision. At 3.66 lbs unloaded, the pistol carries naturally without fatigue during extended wear or duty shifts. The GI Standard configuration features a parkerized-style finish resistant to corrosion, genuine GI-pattern controls including thumb safety and grip safety for positive shooter intent confirmation, and single-stack magazine geometry that reduces grip circumference for shooters with smaller hands. The 9-round capacity provides adequate firepower while maintaining the single-stack design integrity that defines 1911 handling characteristics.

Operators, armed civilians, and sport shooters benefit from this pistol's compatibility with decades of aftermarket support—triggers, grips, holsters, and sights remain widely available at competitive prices. The 1911 platform's straight recoil impulse and low bore axis provide superior control for rapid follow-up shots compared to modern striker-fired designs. Law enforcement and military veterans familiar with M1911 manual-of-arms will require zero transition training. For those building a reliable, compact duty or personal-defense pistol without premium manufacturing costs, the Rock Island Armory GI Standard delivers proven performance grounded in tested design.