Moyeworks Bk4 Forks

Brand: RUISHA
Product Name: Moyeworks BK4 Forks

The BK4 Fork is available in two handle material options (Titanium and Bronze)

About the BK4 Fork

The BK4 Fork features two deployment methods: a push-button mechanism and a front flipper. The standard version comes in a black-and-gray color scheme. The fork head is crafted from M390 steel and finished with a black PVD coating, followed by a stonewashed and distressed treatment. The titanium handle is sandblasted and stonewashed with a distressed finish.

The BK4 Fork does not include a pocket clip, but it features pre-drilled dual-hole mounting positions (imperial spacing) that are compatible with vertical dual-hole clips from brands such as Big Sword and Steel Flame.

The BK4 Fork is an extension of the BK4 product line, designed around the harmonious resonance of a tuning fork while emphasizing portability. Its production version is derived from Moye's handmade prototype, the **"Trench 9."** While retaining multifunctional features such as a wrench and bottle opener, it further expands on tuning-fork-based playability, resulting in an upgraded design better suited for flipping and fidgeting.

The fork-shaped profile is particularly well suited for urban everyday carry, commuting, and travel scenarios, including high-speed rail and air travel. Weight-reduction cutouts in the handle help improve portability, while the transverse groove texture enhances grip and anti-slip performance, providing better control and force application. The overall matte, dark-toned finish emphasizes a low-profile yet highly practical tactical aesthetic.

Specifications

Lock Type: Liner Lock
Pivot System: Bearings
Fork Material: M390 Steel
Handle Material:** TC4 Titanium Alloy
Overall Length (Open):** 148 mm
Closed Length:** 87.5 mm
Fork Thickness:** 3.5 mm
Overall Thickness:** 12.5 mm
Overall Width:** 25 mm
Weight:** 82.15 g (Bronze Version: 118 g)

Included Accessories

* Psigear Knife Pouch
* Velcro Patch
* Sticker
* T8 Wrench
* Thread-Locking Compound