Ruger Mark IV Magazines
Factory Ruger OEM • Mark III / Mark IV Compatible • .22 LR • 10-Round
The Ruger Mark IV — introduced 2016 as the long- awaited fourth generation of the Mark pistol family Bill Ruger launched in 1949 — is the definitive American .22 LR target pistol, and the pistol that finally solved 67 years of notoriously difficult disassembly with a single-button take-down. Keep Shooting carries factory Ruger OEM magazines cross-compatible between the Mark III (2005–2016) and Mark IV (2016–present) generations — the 10-round single magazine and the best-value 10-round 2-pack bundle. Factory production from Prescott, Arizona.
About Ruger Mark IV Magazines at Keep Shooting
Keep Shooting carries factory Ruger OEM magazines for the Ruger Mark IV and Mark III target-pistol family — the 10-round single magazine ($27.36) and the Mark III / Mark IV 10- round 2-Pack bundle ($41.53, approximately $20.77 per magazine for meaningful savings over single-magazine pricing). Both magazines are cross-compatible between the Mark III (2005–2016) and Mark IV (2016–present) generations — the same magazine geometry serves both pistol families. For the broader Ruger magazine lineup, see our parent Ruger Magazines category, or the Ruger brand page for the full Ruger catalog.
The Ruger Mark series is the most historically significant American .22 LR target-pistol lineage of the post-WWII era — the pistol that launched Sturm, Ruger & Company in 1949 and has remained in continuous production ever since, 76 years later. The story begins with William Batterman "Bill" Ruger (1916–2002), a young mechanical engineer who had acquired a Japanese Nambu Type 14 pistol from a returning US Marine friend at the end of WWII and spent two years in his Southport, Connecticut workshop reverse-engineering the Nambu's bolt- cylinder geometry into a new .22 LR target-pistol design. Ruger's design had a cosmetic resemblance to the German Luger P08 (it shares the "Luger-looking" raked grip angle and narrow profile) but was mechanically based on Nambu architecture — a straight-blowback rimfire action with a round receiver, fixed barrel, and a bolt that travels rearward through the receiver on firing.
In 1949 Bill Ruger partnered with Alexander McCormick Sturm (1923–1951), a Yale-educated artist and writer who contributed the company's capitalization ($50,000 at founding) and designed the famous red eagle / phoenix trademark. The company was established as Sturm, Ruger & Co. in Southport, Connecticut, and launched the Ruger Standard pistol at $37.50 MSRP — a dramatically lower price point than the contemporary Colt Woodsman target pistols at $60+. The Standard hit 100,000 units sold by 1954. Sturm died unexpectedly at age 27 in 1951 from viral hepatitis — a short time after the company's founding — and Bill Ruger adopted the practice of displaying the red eagle logo in black on Ruger products between 1951 and Sturm's wife's death in 2000 as a memorial to his partner. Sturm's original red-eagle design was restored after 2000.
The Mark-series generations have been: Mark I (1951–1982 — target variant with bull barrel and adjustable sights, the competition- grade derivative of the original Standard); Mark II (1982–2004 — improved extractor, bolt hold-open on empty magazine, scalloped receiver); Mark III (2005–2016 — magazine disconnect, loaded chamber indicator, internal lock (ILS), Picatinny rail mounting option, 1-piece bolt with cocking-ear improvements); and Mark IV (2016–present).
The Mark IV's singular contribution to the lineage is a one-button take-down that finally solved 67 years of notoriously difficult disassembly. The original 1949 Standard and every subsequent Mark-series pistol through Mark III required a specific multi-step disassembly procedure involving the mainspring housing latch, the bolt geometry, and a precisely- calibrated sequence that took minutes to execute correctly and frequently resulted in scraped hands, lost parts, and frustrated owners. The Mark III's reputation for being "the hardest-to-disassemble pistol in America" was a standing joke in the .22 LR target-pistol community for decades. The Mark IV's solution — a single button on the back of the frame that releases the barrel-receiver assembly in one motion — was greeted as a revolution when Ruger announced the platform at SHOT Show 2016. Mark IV field-strip time went from 2–5 minutes (Mark III, with practice) to 10 seconds (Mark IV, first-time user). This was the specific selling proposition behind the Mark IV's 2016 launch and the primary driver of Mark IV sales since. Mark IV buyers who had avoided earlier Mark-series pistols specifically because of disassembly difficulty became a major new buyer cohort.
Mark IV variants span the full target / competition / standard pistol spectrum. The Mark IV Standard (4.75-inch barrel, the baseline model), Mark IV Target (5.5-inch bull barrel — the competition reference), Mark IV Hunter (6.88-inch fluted barrel with Ruger-MK logo engraving, scope-ready), Mark IV 22/45 (polymer lower with 1911-angle grip frame for shooters transitioning from or training for 1911-pattern centerfire pistols — note: 22/45 variants use a DIFFERENT magazine than standard Mark IV frames), Mark IV 22/45 Lite (aluminum upper), Mark IV Tactical (threaded barrel for suppressor mounting), and Mark IV Competition (bull barrel with muzzle compensator). All non-22/45 Mark IV variants use the common Mark III/IV magazine — the 22/45 models require a different magazine that fits the 1911-angle grip frame.
Magazine compatibility matrix. Mark III and Mark IV magazines are fully interchangeable — Ruger kept the magazine geometry constant across the 2005–2016 transition to simplify the existing-owner upgrade path. Mark II (1982–2004) and earlier Mark I magazines are NOT compatible with Mark III or Mark IV — Ruger changed the magazine release geometry in the Mark III redesign, which broke compatibility with the earlier two- generation production run. Mark IV 22/45 magazines (polymer 1911-angle lower) use entirely different magazine geometry than standard Mark IV — NOT cross-compatible with Mark III/IV standard-frame magazines. If you own a Mark IV 22/45 variant, confirm you are ordering the 22/45-specific magazine, not the standard Mark III/IV magazine sold in this category.
The Mark IV's role in the modern Ruger rimfire catalog. Ruger maintains two distinct .22 LR pistol lineages: the Mark IV for target and competition shooting (bull barrel, adjustable sights, scope-ready, steel construction, heavy for accuracy), and the SR22 for training, first-gun, and pocket plinking (lightweight polymer, compact profile, service-pistol ergonomics). The Mark IV is the Ruger response to shooters who want the best American-made .22 LR target pistol; the SR22 is the response to shooters who want an affordable rimfire training companion to their centerfire service pistol. See our Ruger SR-22 Magazines category for the compact companion pistol's magazine ecosystem. For the broader Ruger 10/22 rimfire-rifle magazine inventory, see our Ruger 10/22 Magazines category — the 10/22 is the Mark IV's carbine-length rifle cousin in Ruger's continuous .22 LR lineup.
The Mark IV civilian market today covers specific target-pistol buyer profiles. Competition bullseye shooters — the Mark IV Target and Competition variants dominate the American .22 LR bullseye match circuit, from local club-level NRA Conventional Pistol matches through national-level Camp Perry competition. Small-game hunters — the Mark IV Hunter with the 6.88-inch fluted barrel and scope mount is the reference squirrel / rabbit / small- predator handgun for a large hunting community. Suppressor / NFA shooters — the Mark IV Tactical threaded-barrel variant is one of the most popular rimfire suppressor hosts in the American market. Mark series loyalists who have owned earlier Mark-series pistols for decades and finally upgraded to the Mark IV for the one-button take-down. 1911-pattern shooters who chose the Mark IV 22/45 for rimfire training compatible with their 1911 centerfire manual-of-arms. Rimfire collectors — the Mark series has been in continuous production since 1949 across dozens of configurations and special editions, and collector demand for specific variants remains active.
Keep Shooting ships all Mark IV magazines from our Pennsylvania warehouse with free shipping on orders over $49.95 and hassle-free returns. The Mark IV's 10-round capacity ships to all 50 US states — the rimfire target-pistol capacity falls below every state-level magazine capacity restriction, making the Mark IV one of the few pistol platforms with unrestricted nationwide shipping for spare magazines. Whether you're a bullseye competitor stocking spare magazines for a Mark IV Target or Competition pistol, a small-game hunter building magazine inventory for a Mark IV Hunter fluted-barrel setup, a suppressor owner running the Mark IV Tactical threaded variant, a long-time Mark III owner whose 2005-era magazines have developed spring fatigue after 15+ years of use and need factory replacements (Mark III and Mark IV magazines are fully interchangeable), or a new Mark IV owner building initial magazine inventory beyond the single magazine included with the pistol, every Mark IV magazine in our catalog is factory Ruger production from Prescott, Arizona and carries the Ruger manufacturer warranty.
Frequently Asked Questions — Mark IV Mags
Keep Shooting carries a wide selection of Mark IV Mags products from trusted brands. Browse our catalog to see the full range, and use the filters on the left to narrow by brand, price, or product type.
Yes! All orders over $49.95 qualify for free shipping, including Mark IV Mags products. Orders typically ship within 1–2 business days.
Keep Shooting offers hassle-free returns on Mark IV Mags products. If you're not completely satisfied, contact our customer service team for a return authorization. All products must be in original, unused condition.
If you need help choosing the right Mark IV Mags product, our team is available to assist. Check individual product descriptions for detailed specifications, or contact us directly and we'll help you find the best fit for your needs.