Springfield Armory 1911 Loaded MC Operator .45 ACP, Gen 1 Square-Rail, 5 in Match Barrel, OD Green/Black
This Gen 1 Springfield Armory 1911 Loaded Marine Corps Operator (MC Operator) stands out with its early squared dust cover and integral 4-slot MIL-STD-1913 accessory rail, OD green forged carbon-steel frame, and black slide. It features a forged stainless 5-inch match-grade barrel with 1:16 twist, tritium 3-dot sights with a Novak-style rear, and two-piece Pachmayr rubber grip panels with medallions. The case label reflects the PX9105ML part number, and an NM-prefix serial is observed on the frame and label.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Details: Evidence of handling is minimal under close inspection. The bore presents a bright, reflective surface consistent with careful use.
What’s Included
- Springfield Armory factory hard case (blue) with serialized label (NM-prefix)
- 1x 7-round steel single-stack 1911 magazine (no maker marks visible)
As a Gen 1 MC Operator, this pistol uses the early square-rail dust cover with an integral 4-slot MIL-STD-1913 accessory rail. The government-length 5-inch slide carries both front and rear cocking serrations and is finished in black over an OD green forged carbon-steel frame.
The barrel is a forged stainless 5-inch match-grade unit with a 1:16 twist, paired with a GI-style recoil system featuring a standard barrel bushing and a checkered plug. This classic setup complements the model’s duty-focused configuration.
Controls and ergonomics include an extended beavertail grip safety with raised pad, a thumb safety, a skeletonized Commander-style hammer, and a skeletonized long three-hole trigger. The front strap is smooth, the mainspring housing is checkered, and the magazine well is lightly beveled. Two-piece Pachmayr rubber grip panels with medallions complete the Gen 1 configuration noted for this variant.
Sight equipment consists of a tritium 3-dot set with a Novak-style low-profile rear. Factory markings include left slide "OPERATOR CAL .45," right slide "SPRINGFIELD ARMORY" with the crossed-cannons crest, and "S.A. .45 AUTO" on the barrel hood.
Additional identifiers include the PX9105ML part number on the case label and an NM-prefix serial observed on both the frame and label. This model was manufactured in the USA.