Rock Island ACT-MAG 17-Round Magazine — 9mm Luger — Blued Metal (Model 3209, UPC 812285025476)
Upgrade your Sig Sauer P320 / M17 with a dependable spare magazine engineered for durability, smooth feeding, and reliable service. The Rock Island ACT-MAG 3209 is a direct-fit 17-round replacement magazine for 9mm Luger pistols (P320 / M17), finished in blued metal and built to deliver consistent performance for range days, training, and duty use. GrabAGun+1
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Rock Island ACT-MAG 3209, 17rd 9mm magazine, Sig P320 magazine, M17 spare magazine, blued metal pistol magazine, 9mm Luger magazine UPC 812285025476.
Long Product Description (SEO-Optimized)
When you need a reliable magazine that matches the fit and feel of your Sig Sauer P320 / M17, the Rock Island ACT-MAG 17rd (Model 3209) delivers. Designed as a direct-fit ACT-MAG replacement, this 17-round 9mm Luger magazine provides an OEM-style profile that inserts and locks with the same secure engagement you expect from factory magazines — making it an excellent option for shooters who want an affordable, dependable spare. impactguns.com+1
Constructed from robust metal with a corrosion-resistant blued finish, the ACT-MAG balances toughness and a classic appearance. The metal body resists deformation under heavy use, while the polished feed lips, steel spring, and engineered follower combine to promote smooth, consistent feeding across a variety of 9mm loads — from budget range ammo to higher-quality defensive rounds. GunMag Warehouse+1
A polymer baseplate and follower are often paired with the ACT-MAG design for improved shock resistance during mag changes and enhanced user ergonomics when manipulating the magazine under stress or training conditions. Whether you're stocking up for practice, replacing a lost magazine, or adding capacity for competition or duty, the Rock Island 3209 offers a practical, cost-effective solution. GunMag Warehouse+1
Key Features & Benefits
Direct-fit for Sig Sauer P320 / M17 — installs and functions like an OEM spare. GrabAGun
17-round capacity — standard service capacity for 9mm Luger in many duty/service configurations. GrabAGun+1
Durable metal construction with blued finish — resilience and a low-glare classic look. Guns.com
Reliable feeding — engineered follower and spring for smooth cycling across typical 9mm loads. GunMag Warehouse
Affordable spare or replacement — great value for shooters who want dependable performance without premium pricing. Georgia Guns & Ammo
Specifications
Who This Magazine Is For
Installation & Use Tips
Inspect each magazine before first use — check feed lips, spring tension, and baseplate seating.
Load using recommended 9mm Luger ammunition (avoid +P rounds unless the magazine and firearm owner manual permit).
Rotate magazines in regular use to extend spring life — stored, fully-loaded magazines can lose tension over long periods.
Clean externally and lightly lubricate the spring/follower area if you shoot in dusty or wet conditions (follow firearm and magazine manufacturer guidance).
Warranty & Safety Notes
Rock Island / Armscor product warranties and returns policies vary by retailer — check your seller’s policy for details before purchase. Always follow local laws and regulations regarding magazine capacity and firearm accessories in your jurisdiction. Handle all magazines and firearms safely: keep the finger off the trigger, point firearms in a safe direction, and follow standard safe storage practices.
Final Thoughts
The Rock Island ACT-MAG 3209 is a sensible, value-driven choice for P320 / M17 owners seeking a 17-round 9mm magazine with solid construction and reliable feeding. With a direct-fit design, blued metal finish, and widespread availability through major retailers, this mag makes a practical addition to your kit — whether for training, competition, or as an everyday spare. GrabAGun+1
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