Government 1911 Short Block – 9mm – Tactical
The Government 1911 Short Block gives shooters and custom gunsmiths a decisive head start on serious builds. Instead of beginning with raw components, this 1911 Short Block arrives with the slide, frame, and barrel already precision fit. As a result, builders save time while controlling overall project cost.
Moreover, we assemble every 1911 Short Block using the same standards applied to our full custom pistols. Because we follow proven fitting methods, each short block delivers accuracy, reliability, and durability from the start. Consequently, this platform suits DIY builders, competitive shooters, and professional gunsmiths alike.
Full-Custom Build Standards in Every 1911 Short Block
Unlike basic parts kits, our 1911 Short Block uses full-build assembly techniques. Therefore, builders receive true gunsmith-level fitment without paying for unnecessary labor. At the same time, the modular short block format preserves full freedom during final assembly.
In addition, we select every component in the 1911 Short Block for compatibility and performance. As a result, the foundation remains consistent, predictable, and easy to finish.
Precision 1911 Short Block Frame
Oriskany Arms Government 1911 Frame
At the core of the 1911 Short Block, the Oriskany Arms Government frame provides strength and value. Notably, this frame offers features commonly found on frames costing two to three times more. First, Oriskany Arms precision casts the frame from 4140 carbon steel. Next, CNC machining brings the frame to final dimensions. Then, controlled heat treatment to Rc 22–24 ensures durability without brittleness.
Because we machine the frame rails oversized, the gunsmith achieves an exceptionally tight slide-to-frame fit. Consequently, mechanical consistency improves and accuracy increases. Additionally, 20-line-per-inch front-strap checkering enhances grip control under recoil. Ultimately, this frame gives the 1911 Short Block a rugged and dependable foundation.
Elite Tactical 1911 Short Block Slide
TMC Elite Slide Construction
We pair the frame with a TMC Elite slide to complete the upper half of the 1911 Short Block. Specifically, we CNC machine the slide from 4140 bar-stock carbon steel and then heat treat it for long-term durability. Because this alloy offers excellent fatigue strength and toughness, the slide performs reliably under hard use.
Furthermore, front and rear cocking serrations provide a secure grip during manipulation. As a result, racking remains controlled in all conditions. In addition, standard dovetail cuts support a wide range of sight options.
Sight Cut Specifications
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Rear dovetail: .495″ × 65°
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Front dovetail: .330″ × 65°
Because these dimensions follow industry standards, sight installation remains simple and flexible.
Match-Grade Barrel System for the 1911 Short Block
Full-Support 9mm Stainless Barrel
The 9mm Tactical 1911 Short Block includes a match-grade stainless steel barrel with a full-support ramped design. Consequently, the barrel improves feeding reliability and strengthens chamber support.
We CNC machine each barrel in the USA from premium stainless steel bar stock. After machining, we heat treat and cryo stress-relieve the barrel. Therefore, internal stress decreases and barrel life increases. Finally, precision broach-cut rifling delivers consistent accuracy with all bullet types, including lead.
Because we machine the barrel slightly oversized, lockup remains strong. As a result, accuracy stays repeatable across high round counts.
Precision Fitment Throughout the 1911 Short Block
Slide-to-Frame Fit
We hold extremely tight tolerances on every 1911 Short Block slide-to-frame fit. Therefore, lateral movement stays minimal during cycling. As a direct result, shot-to-shot consistency improves.
Barrel Fit and Lockup
We hand fit each barrel bushing and carefully establish lockup in every 1911 Short Block. Consequently, the barrel returns to the same position with every cycle. In turn, this repeatability enhances accuracy and reliability.
Included Components with the 1911 Short Block
To streamline the build, each 1911 Short Block includes:
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Recoil system
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Slide stop
Because we already select and fit these parts, builders avoid delays and unnecessary troubleshooting.
Components Required to Complete the 1911 Short Block
To finish the pistol, builders must install the following parts:
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Plunger tube
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Mainspring housing and magazine release
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Hammer, sear, sear spring, and disconnector
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Trigger
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Thumb safety and grip safety
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Firing pin, firing pin spring, and firing pin stop
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Ejector and extractor
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1911 pin kit
Because the core components already fit correctly, these remaining parts allow precise tuning of trigger feel, controls, and ergonomics.
Why Builders Choose the 1911 Short Block
In summary, the Government 9mm Tactical 1911 Short Block delivers a professional-grade foundation without wasted effort or inflated cost. By combining premium materials, precision machining, and proven fitting methods, it provides accuracy and reliability from the first shot.
Ultimately, the 1911 Short Block gives builders the freedom to finish the pistol their way—while starting from a platform built right from the beginning.
⚠️ FIREARM WARNING
1911 frames are serialized firearm components regulated by the BATFE.
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This item must ship to a Federal Firearms License (FFL) holder
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All BATFE, GCA, and NFA rules apply
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You are responsible for confirming legality in your state
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You must ensure your chosen FFL will accept and transfer the firearm
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Thunder Mountain Custom, LLC is not responsible for shipping or administrative fees if an FFL refuses delivery







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