The ProMag Standard 15-Round 9mm Luger Magazine for Ruger SR – Blued Steel, Model RUGA36, UPC 708279012105 is an aftermarket detachable box magazine designed for Ruger SR-series 9mm pistols. Built from heat-treated steel with a black/blued oxide finish and equipped with a chrome-silicon spring and polymer follower, this 15-round magazine is intended as a reliable replacement or spare option for range, training, and everyday carry configurations that use the Ruger SR9 platform.
Platform Compatibility and Caliber
This magazine is specifically configured for Ruger’s 9mm SR-series pistols:
Firearm fit: Ruger SR9 9mm pistols (and compatible SR-series 9mm variants that use the same magazine pattern)
Caliber: 9mm Luger (9×19mm Parabellum)
Capacity: 15 rounds (15+1 when one round is chambered)
Magazine type: Double-stack detachable box magazine
The RUGA36 is marketed as a replacement or spare magazine for 9mm Ruger SR pistols, offering a capacity on par with many factory-standard mags in this platform.
Magazine Body, Material, and Finish
ProMag constructs the RUGA36 to withstand repeated use and typical carry environments:
Body material: Heat-treated steel (high-carbon steel) for strength and resistance to denting and deformation
Tube construction: Stamped and welded steel tube, engineered for consistent internal dimensions and smooth cartridge stacking
Finish: Blued / black oxide finish, providing corrosion resistance and a non-reflective matte surface that visually complements common black or stainless slide finishes
The steel construction and protective finish are designed to cope with holster contact, sweat, and environmental conditions encountered in training and day-to-day carry.
Internal Components: Follower and Spring
To support reliable feeding and long-term service life, the RUGA36 incorporates high-quality internal components:
The combination of a steel body, polymer follower, and chrome-silicon spring is intended to provide stable feeding across the full 15-round stack when the magazine is clean and used with ammunition appropriate for the Ruger SR9.
Baseplate, Form Factor, and Handling
ProMag equips the RUGA36 with a durable, removable base assembly:
The basepad design supports positive seating and easy stripping of the magazine, while keeping edges rounded to reduce printing and snag potential under a cover garment.
Reliability, Origin, and Warranty
ProMag positions the RUGA36 as a robust aftermarket option:
Design philosophy: Uses heat-treated steel tubes, chrome-silicon springs, and molded polymer followers and baseplates to support demanding use in semi-automatic pistols
Origin: Made in the USA (consistent with ProMag’s magazine manufacturing practices)
Warranty: Covered by ProMag’s lifetime replacement warranty against defects in materials and workmanship, according to their standard policy
End users should always test any new magazine with their specific Ruger SR9 pistol and chosen ammunition, verifying feeding reliability and slide lock-back before relying on it for defensive purposes.
Typical Use Cases
The ProMag Standard 15rd 9mm Luger Fits Ruger SR RUGA36 magazine is suitable for a variety of roles:
Range and practice: Extra magazines reduce downtime between strings of fire and allow realistic reload drills.
Home defense setups: Provides additional ready-to-use magazines for a Ruger SR9 kept for defensive use (subject to local regulations).
Concealed or open carry: When local laws and personal setup permit, a 15-round magazine offers a standard-capacity option for everyday carry.
Backup or replacement: Serves as a cost-effective spare for shooters who want more magazines than those supplied with the pistol from the factory.
Always ensure that the use and carrying of 15-round magazines conform to state and local capacity restrictions.
Maintenance and Care
Like all detachable magazines, the RUGA36 works best with periodic maintenance:
Cleaning:
Disassemble the magazine by removing the polymer baseplate, then clean the body, follower, and spring of powder residue, dirt, and debris.
Inspection:
Check the feed lips for cracks or deformation
Inspect the spring for corrosion or loss of tension
Ensure the follower travels smoothly without binding
Regular maintenance helps preserve feeding reliability and extends the service life of the magazine.
Technical Identification and Catalog Data
For cataloging, ecommerce product pages, and SEO purposes, the magazine can be described with the following standardized data:
Product name: ProMag Standard 15rd 9mm Luger Fits Ruger SR Blued Steel Magazine
Manufacturer: ProMag Industries
Model / Part Number: RUGA36
UPC / Barcode: 708279012105
Firearm fit: Ruger SR9 9mm pistols (and compatible SR-series 9mm models using the same mag pattern)
Caliber: 9mm Luger (9×19mm)
Capacity: 15 rounds
Body material: Heat-treated steel
Finish: Blued / black oxide
Follower: Injection-molded polymer
Spring: Heat-treated chrome-silicon wire
Baseplate: Polymer, removable
Configuration: Double-stack pistol magazine, detachable
Including these details in product titles, bullet points, and metadata supports search phrases such as “ProMag RUGA36 Ruger SR9 15 round 9mm magazine,” “Ruger SR 9mm blued steel 15rd mag,” or searches by UPC 708279012105.
In summary, the ProMag Standard 15rd 9mm Luger Fits Ruger SR Blued Steel Magazine (RUGA36, UPC 708279012105) is a U.S.-made, double-stack 15-round 9mm magazine for Ruger SR9 pistols. It features a heat-treated blued steel body, chrome-silicon spring, polymer follower, and removable polymer baseplate, offering Ruger SR owners a practical replacement or spare magazine solution for range work, training, and defensive roles where a standard-capacity 15-round magazine is appropriate and legal.
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