The Rock Island M1911-A1 Tactical .45 ACP 51431 blends traditional 1911 craftsmanship with modern enhancements for today’s shooters. Constructed from forged 4140 ordnance steel, this full-size pistol features a 5-inch barrel for excellent accuracy and a durable parkerized finish that stands up to daily wear.
Internally, it uses a Series 70 fire control system, known for its crisp and clean trigger pull. A skeletonized trigger with overtravel stop, combat hammer, and beavertail grip safety ensure control and comfort during rapid fire. The ambidextrous thumb safety makes it left- or right-hand ready out of the box.
This Tactical model is equipped with Novak-style low-profile sights and G10 or checkered polymer grips, offering a solid, non-slip surface. The full-length guide rod ensures smoother cycling and greater recoil control. With its single-stack 8+1 capacity, the 51431 delivers traditional stopping power with modern dependability.
Key Features:
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Caliber: .45 ACP
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Capacity: 8+1
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Barrel Length: 5″
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Frame/Slide: Forged 4140 steel
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Finish: Parkerized
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Sights: Novak-style low-profile
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Grips: G10 or textured polymer
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Trigger: Skeletonized with overtravel stop
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Safety: Ambidextrous thumb safety, beavertail grip safety
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Guide Rod: Full-length
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Part Number: 51431
Manufacturer Specs:
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Overall Length: 8.5″
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Height: 5.5″
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Width: 1.3″
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Weight: Approx. 2.5 lbs (unloaded)
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Twist Rate: 1:16
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Grooves: 6
Frequently Asked Questions:
Q: Is this pistol optics-ready?
A: No. It comes with fixed Novak-style iron sights.
Q: What is the magazine capacity?
A: It holds 8 rounds in the magazine, plus one in the chamber for a total of 8+1.
Q: What type of internals does it use?
A: The 51431 uses Series 70 internals, offering a cleaner and more direct trigger pull.
Q: Are the safeties ambidextrous?
A: Yes. It features an ambidextrous thumb safety and a beavertail grip safety.
Brought to you by Black Bayou Armory.
