Metalform® Standard Series 1911 Extended Magazine – Fits Government & Commander – 9mm Luger – 10 Round Stainless Steel – Ultra Mag Base & Flat Follower – 9.743
The Metalform® Standard Series 10-Round 9mm Stainless Steel Extended 1911 Magazine (9.743) represents a premier mechanical benchmark in single-stack feeding logistics, masterfully engineered in the USA to overhaul tactical capacity ceilings for classic handgun architectures. While legacy single-stack 1911 9mm configurations often default to standard 9-round flush-fit geometries—which frequently require users to sacrifice vital downrange payload volume—cheap aftermarket extended magazines can introduce a dangerous host of feed-lip flexing bugs and timing failures that induce nose-diving stovepipe jams under rapid fire strings. Metalform completely overrides that operational liability. This premium, original equipment manufacturer (OEM) grade feeding vessel (858303007246) is trusted as the factory standard supplier for top-tier custom brands like Colt, Smith & Wesson, and Kimber, serving as an exceptional primary asset for USPSA Single Stack division competition, everyday carry (EDC) security, and intensive range training loops.
The structural foundation of this high-efficiency extended reservoir is precision-drawn from a monolithic sheet of premium, high-tensile stainless steel alloy. Celebrated throughout precision custom cutlery and weapons manufacturing for its extreme yield strength and total immunity against persistent oil solvent exposure and acidic hand sweat, the tube is tailored with highly polished internal channels. The defining technical edge of the 9.743 blueprint is its factory integration of a classic-style flat steel follower paired with a premium high-strength Wolff spring coil. This performance-tuned internal motor maintains perfectly uniform upward presentation pressure from the first heavy cartridge down to the last empty shell, preventing feed-ramp trajectory hang-ups with wide-mouthed defensive hollow points or light target reloads.
The true operational highlight of this American-made milestone lies in its robust impact mitigation and universal platform compatibility. The base is completed by a **removable polymer Ultra Mag Base pad**, which absorbs punishing drop shocks when ejecting onto hard concrete range floors while offering vital extra thumb leverage during high-stress tactical seating sequences. Detailed with clear, factory-drilled **numbered witness holes running along the side walls** for instant visual round-count status updates, this 4.00-ounce duty-ready magazine delivers absolute mechanical authority, seating perfectly flush against the magwell rim of **full-size 5-inch 1911 Government and compact 4.25-inch 1911 Commander frames across major manufacturers like Springfield Armory, Rock Island Armory, Sig Sauer, and Ruger** (Note: Explicitly does not fit subcompact Springfield EMP sub-caliber frames).
Includes: (1) Metalform 1911 Government/Commander Extended 10-Round 9mm Stainless Steel Magazine, Pre-Installed Wolff Coil Spring, Flat Follower, Impact-Resistant Removable Ultra Mag Base Pad, and Factory Distribution Packing.
*Single-Stack 9mm 1911 Maintenance & Feed Lip Guidance: To secure flawless mechanical cycling and ensure your slide stops lock open reliably on empty, never let carbon slurry pack down within the lower body channels. Thanks to the 9.743 removable floorplate layout, shooters can easily slide the base pad away to release the spring array for routine scrubbing loops. Keep the feed lips free of heavy oil pools, and always verify that the upper cartridge presentation track stays clean of gritty powder residue during range training strings.
Key Features
- Extended 10-Round Firepower: Expands your traditional single-stack 9mm loadout thresholds up to a full 10-round capacity to streamline competitive stage plans and defensive readiness.
- Premium USA Stainless Steel Shell: High-tensile stainless construction provides a sleek, rigid external frame that resists deformation under continuous spring pressure.
- Polished Flat Steel Follower: Classic flat profile presents 9mm Luger cartridges at an optimized, tilt-free feeding angle to ensure smooth transit over your barrel's feed ramp.
- Premium Wolff Spring Motor: Calibrated internal wire spring yields continuous, non-fading upward trajectory force to eliminate nose-diving short cycles.
- Impact-Absorbing Ultra Mag Base Pad: Removable heavy-walled base bumper protects the underlying steel from impact flattening when dropped on harsh range surfaces.
- Universal Full-Size 1911 Fitment: Tailored to fit most standard 1911 Government and Commander platforms, including Colt, Kimber, Ruger, Sig Sauer, and Springfield Armory.
Product Specifications
- Brand: Metalform® / ATW Companies (Warwick, Rhode Island, USA)
- Product Line: Premium OEM Factory-Standard Replacement Series
- Model Designation: 1911 Full Size Extended 9mm SS Ultra Mag Base 10rd
- SKU / MPN: 9.743 (Alternative Factory Identifiers: Metalform 9.743 / 9743 / 9.743-SS)
- Firearm Platform Interface: 1911 Government (Full-Size 5") & 1911 Commander (Compact 4.25") Frames
- Frame Compatibility Exclusions: Does NOT fit Springfield Armory® EMP Sub-Compact Models
- Caliber Class Chambering: 9x19mm Parabellum / 9mm Luger
- Maximum Magazine Capacity: 10 Rounds (Extended Extended Single-Stack Array)
- Tube Material Composition: Precision-Drawn Premium Stainless Steel Alloy
- Surface Finish Class: Bright Polished Natural Stainless Steel
- Follower Profile System: Classic Flat Steel Follower Setup
- Internal Spring Architecture: Heavy-Duty Heat-Treated Wolff Spring Wire
- Baseplate Profile: Removable Polymer Ultra Mag Bumper Base Pad (Two-Screw Interface Retention)
- Visual Status Indication: Numbered Laser-Etched Witness Profile Holes (Rounds 2 through 10)
- Product Net Assembly Weight: ~4.00 oz (113.4 g) - Duty-Vetted Rigidity Profile
- Total Boxing Shipping Mass: ~0.50 lbs (Enclosed Inside Protective Padded Poly-Wrap Packing)
- UPC Barcode: 858303007246
