GiantMouse ACE Elmer OTS Auto Black PVD Magnacut Blade Grey Diamond Aluminum Handle GMELMER-GREY-DIAMOND

The GiantMouse ACE Elmer OTS Auto in PVD CPM Magnacut with a grey diamond aluminum handle is the latest expression of GiantMouse’s first automatic collaboration with ProTech, built entirely in the USA. This knife brings together clean design language, proven automatic engineering, and a story rooted in resilience. It’s not just another addition to the lineup—it’s a purpose-built tool with presence, precision, and meaning behind every detail.

Some knives are defined by what they do. Others are defined by where they come from. The ACE Elmer carries both. Its name honors Elmer, a WWII artillery gunner in the 36th Texas Infantry Division who fought across North Africa and Europe, enduring some of the most grueling campaigns of the war. From desert operations against Rommel to the chaos of Monte Cassino and the final push through Europe, he carried himself with quiet determination and returned home without seeking recognition. That steady resolve is the foundation of this design.

Built in partnership with ProTech, the Elmer delivers crisp, reliable out-the-side automatic action powered by a push-button mechanism that fires with authority and control. The button lock is tight and confident, giving the knife secure lockup in both open and closed positions. Every aspect of the mechanism reflects ProTech’s reputation for precision, while GiantMouse’s design influence ensures the overall profile remains clean, functional, and intentional.

The blade is crafted from CPM Magnacut steel, heat-treated to approximately 62 HRC, delivering an elite balance of toughness, edge retention, and corrosion resistance. Finished in a durable black PVD coating, it reduces glare, increases wear resistance, and reinforces the knife’s understated, tactical character. At 3.2 inches, the blade is sized for versatility, offering strong cutting performance without unnecessary bulk.

The grey diamond-pattern aluminum handle sets this version apart with a distinctive textured surface that improves grip while adding visual depth. Lightweight yet strong, it keeps the knife easy to carry while maintaining a solid in-hand feel. The geometric pattern enhances control without being aggressive, giving it a refined industrial character. A milled titanium pocket clip completes the package, offering secure and reliable everyday carry.

At 3.2 ounces and 7.8 inches overall, the ACE Elmer balances portability with capability. Limited to just 150 numbered pieces, it stands as a collector-focused release with genuine working performance behind it.

Clean GiantMouse styling meets ProTech automatic precision engineering, available at SMKW.