Sig Sauer P365 Micro-Compact Factory Magazine - 12-Round Capacity, 9mm Luger, Carbon Steel Construction, Custom Baseplates, Black Finish - MAG-365-9-12
Product Description
Equipping an everyday carry (EDC) micro-pistol with an optimized feeding system requires genuine factory components built to uncompromising defensive specifications. Sub-compact handguns frequently present a handling challenge due to short grip frames that leave the shooter's pinky finger dangling, which increases muzzle flip and compromises recoil control on your bench. The **Sig Sauer® P365 12-Round 9mm Factory Magazine (MAG-365-9-12)** completely flatlines this ergonomics constraint. It delivers an extended capacity engine that simultaneously provides a full, confident firing grip.
Proudly engineered and manufactured to professional duty standards by Sig Sauer, this factory-original magazine is stamped from **heavy-gauge carbon steel sheet housing panels**. The metal tube undergoes a rigorous hardening process to prevent feed lip distortion and is finished in a specialized **glossy black anti-friction coating** that ensures smooth cartridge stacking and effortless, drop-free execution out of the receiver. Inside, a high-tensile steel progressive spring wire drives a low-drag polymer follower for flawless cartridge presentation. Crucially, the kit includes two interchangeable floorplates: an extended grip basepad that textures seamlessly into the standard P365 frame, and a flush floorplate to match the longer P365 XL / X-Macro frame lines.
Engineered to lock perfectly into native P365 magazine wells without tools, this turn-key feeding asset ensures absolute concealment balance and ammunition capacity directly from your workbench.
*Armorer Bench Notes & Real-World Magazine Staging Guidance: The Sig Sauer MAG-365-9-12 magazine package arrives workspace ready, complete with the pre-assembled 12-round steel magazine tube fitted with the standard micro-compact extended basepad, plus 1x alternative flush-fit floorplate insert. PROPRIETARY P365 SERIES MODULE FITMENT MATRIX: This modular 12-round feeding block is engineered natively, strictly, and cross-compatibly to fit **all 9mm variations of the Sig Sauer P365 platform**. *Chassis Fitment Configuration:* With the pre-installed extended basepad, it drops into the **standard micro-compact P365**, filling out the grip frame perfectly. By swapping to the included flush-fit baseplate on your bench, it mounts completely flush inside the longer grip modules of the **P365 XL and P365X**. PCC Integration Focus: It also interfaces flawlessly with **9mm Pistol Caliber Carbines (PCC)** configured specifically to receive proprietary P365 frame inputs. Armorer Workbench Custom Staging Sequence: 1. Visually and physically confirm your host handgun is completely clear of live ammunition, the magazine well is empty, and the chamber area is safe. 2. When loading a brand-new factory spring, use an appropriate magazine loader tool to easily depress the heavy progressive coil tension during initial cartridge insertions. 3. Tap the rear vertical spine of the magazine housing lightly against your palm during cartridge loading to settle case rims flat against the steel inner guidance lanes. 4. Clean the external steel walls with a dry microfiber cloth; never inject wet gun oils or thick grease inside the tube chamber, as wet lubricants attract abrasive carbon dust and cause follower binding downrange.*
Key Features
- Genuine Sig Sauer OEM Quality: Sourced straight from Sig Sauer's original production lines to guarantee perfect geometric dimensions, reliable lockups, and strict factory compliance.
- Extended Grip Ergonomics: Outfitted with an extended basepad that extends the micro-compact P365 frame, providing a full hand purchase for vastly improved recoil tracking.
- Dual Baseplate Configuration: Ships complete with two distinct, interchangeable floorplates to adapt seamlessly to either standard micro-compact or extended XL frame sizes.
- Anti-Friction Surface Finish: Coated in a highly polished, smooth black anti-friction finish that protects against trail rust and guarantees instant, drop-free mag changes.
- Hardened Carbon Steel Body: Stamped from high-tensile carbon steel sheet panels to resist side-crush impacts and ensure the feed lips stay perfectly formed over high round counts.
- Reliable Visual Auditing: Built with stamped side witness windows at the 5 and 10 round marks, allowing for lightning-fast visual verification of remaining ammunition levels.
Product Specifications
- Brand: Sig Sauer® Inc. (Newington, New Hampshire)
- Model Line: Factory Original Equipment (OEM) Micro-Compact Performance Feeding Systems
- MPN/SKU Code: MAG-365-9-12 (12-Round Extended Steel Configuration Base SKU)
- UPC Code Profile: 798681583621
- Ammunition Caliber Match: 9mm Luger / 9x19mm Parabellum Handgun Cartridges Only
- Magazine Capacity Tier: 12 Rounds Extended Sub-Compact Staging Deck
- Firearm Platform Compatibility: Sig Sauer P365 Micro-Compact, P365X, P365 XL, and Variant 9mm PCC Lowers
- Body Shell Material Base: Premium Heat-Treated Stamped Carbon Steel Sheet Housing Block
- Exterior Surface Coating: High-Polish Anti-Friction Black Hard Oxide Protection Coating
- Spring Component Core: High-Memory Tempered Carbon Steel Progressive Coil Spring Wire
- Follower Profile Class: High-Density Low-Drag Injection-Molded Black Synthetic Polymer Follower
- Floorplate Configurations Included: 1x Micro Extended Poly Basepad (Pre-installed), 1x XL Flush Poly Baseplate
- Visual Auditing Scale: Rear/Side Stamped Auditing Ports Segmented at 5 and 10 Round Marks
- Packaging Format Class: Factory Original Sealed Cardboard Backer Presentation Card with High-Clear Blister Shell
- Product Type Category: Handgun Components / Pistol Magazines & Micro-Compact Extended Feeding Blocks
- Overall Unit Visual Length: ~4.15 Inches (~105.4 mm Linear Outer Body Clearance Profile)
- Net Component Module Mass: ~2.35 Ounces (~66.6 Grams Lightweight High-Strength Empty Spring Mass)
- Country of Quality Manufacture: Developed, Machined, and Performance-Tested Proudly in the USA
- Warranty Tracking Protection: Fully Backed by Sig Sauer Factory Material Defect Cover
