ProMag® SPR10 Springfield Armory® XD-S® Extended Magazine – .45 ACP – 8 Rounds – Blued Steel – SPR10
The ProMag® SPR10 Springfield Armory® XD-S® Extended 8-Round Magazine (SPR10) is a robust, high-capacity aftermarket feeding instrument engineered to significantly maximize fire volume and manual leverage on the legendary single-stack subcompact concealed-carry pistol frame. While subcompact micro pistols prioritize deep concealment, their ultra-short frames force a compromised "two-finger" grip that induces severe muzzle flip—especially when launching heavy, hard-hitting .45 ACP payloads. This extended configuration (708279012006) masterfully addresses that mechanical barrier, boosting your defensive payload to 8 rounds while adding a continuous physical handle block that locks your support hand tight against the frame for steady target tracking recovery.
Precision-fabricated from heavy-gauge, heat-treated high-carbon steel, the main tube of the SPR10 is completed with a classic, slick black oxide/blued finish. This protective treatment lowers mechanical friction along the interior walls of your slide while shielding the underlying steel matrix from abrasive cartridge wear. The defining technical advantage of this extended magazine is its integration of a **molded polymer grip extension sleeve**. This impact-resistant sleeve slides down flush against the magwell to act as an ergonomic handle shelf, giving you total palm-filling control to tame heavy bore recoil. Internally, the assembly relies on a smooth-gliding, injection-molded **anti-tilt tracking follower** driven by a custom-wound chrome silicon wire spring to ensure uniform upward tracking directly against your rifle or pistol breech face.
The true functional highlight of this ProMag configuration is its value as a high-capacity range, training, or backup asset. Formed via traditional stamping and TIG-welding processes, the magazine body includes precision-indexed visual witness holes along the side walls for instant payload validation. Backed by ProMag's lifetime warranty against manufacturer defects, this 8-round extended component delivers dependable, budget-conscious capacity updates that turn your ultra-slim concealed carry tool into a highly stable combat weapon on the training line.
Includes: (1) ProMag SPR10 Extended 8-Round .45 ACP Blued Steel Magazine with Pre-Installed Polymer Grip Extension Sleeve and High-Tensile Drive Spring.
*Platform Generation Note: This magazine is dimensioned to interface with first-generation Springfield Armory XD-S single-stack pistols chambered in .45 ACP. Due to varying lower receiver geometries across product generations, checking fitment tolerances against newer Mod.2 frames before high-stress deployment strings is recommended.
Key Features
- Expanded 8-Round Carry Payload: Increases ammunition capacity over factory flush plates, giving you an impressive 8+1 threshold of heavy-hitting .45 Auto capability.
- TIG-Welded Carbon Steel Body: Formed from high-carbon heat-treated steel with clean seam welds to ensure smooth structural tracking down into the magazine well.
- Recoil-Taming Grip Extension: Features a built-in, injection-molded polymer sleeve that fills out the hand, providing total pinky support to aggressively fight muzzle rise.
- Heat-Treated Chrome Silicon Spring: Precision-wound spring wire handles long-term storage compression without losing memory, smoothly feeding the final round up the ramp.
- Smooth Anti-Tilt Follower: Proprietary Technapolymer follower balances the cartridge stack horizontally, preventing localized nose-diving or internal column binding.
- Side-Wall Witness Holes: Cleanly stamped and indexed side alignment holes let operators quickly check exact round counts during administrative inspections.
Product Specifications
- Brand: ProMag® Industries
- Product Line: Aftermarket Replacement Magazines
- Model Name: Springfield Armory XD-S .45 ACP 8rd Extended
- SKU / MPN: SPR10 (Alternative Part Identifier: SPR 10 / PRO-SPR10)
- Firearm Model Fitment: Springfield Armory XD-S Single-Stack Pistols (.45 ACP Only)
- Cartridge Caliber Accommodation: .45 ACP / .45 Auto
- Total Payload Capacity: 8 Rounds Extended
- Magazine Body Material: Heat-Treated High-Carbon Steel
- Finish Treatment: Black Oxide / Blued Corrosion-Resistant Coating
- Base Extension Composition: Injection-Molded Impact Resistant Polymer
- Follower Style Configuration: Low-Friction Anti-Tilt Technapolymer Follower
- Internal Spring Chemistry: Heat-Treated Chrome Silicon Wire Spring
- Warranty Support: Manufacturer Lifetime Warranty Protection Policy
- Country of Origin: Proudly Made in the USA
- Product Dimensions: ~11.00″ (L) x 2.60″ (W) x 0.90″ (H) Packaged
- Product Net Component Weight: ~3.20 oz (90.7 g) Unloaded
- UPC: 708279012006
