K9R - M4 Tactical MOLLE Vest
K9R - M4 Tactical MOLLE Harness (Vest)
MADE IN THE USA - LIFETIME WARRANTY
The M4 Tactical MOLLE Harness (Vest) is built to be the best-fitting harness for standard and larger small-to-medium breeds. It's lightweight, durable, and made with premium materials — built tough for hard, rough use, with airflow that keeps your dog comfortable through walks, adventures, and even working shifts. It's a rugged harness hand-built in-house in our own shop, delivering a tailored, secure fit rather than a generic one-size-fits-most feel.
Laser-cut from premium Cordura nylon, the M4 uses precision manufacturing to create a contoured, ergonomic shape most harnesses can't match. A five-point adjustment system lets you dial in a comfortable, custom fit. Four quick side-release buckles get your dog geared up fast. Lightweight padding on the main body keeps things comfortable even when the MOLLE panels are loaded up with gear. A heavy-duty top-center grab handle gives you added control and support whenever you need it.
The chest area is kept minimal — just webbing, no padding — for maximum airflow right where dogs need cooling most. Two leash attachment points give you multiple ways to safely control your dog. Loop panels on both sides hold ID and morale patches, with MOLLE slots in between for accessories and gear.
Have a long-bodied breed like a dachshund? Check out our D5 Dachshund Harness, engineered specifically for their body type.
FEATURES
- Tailored, Not One-Size-Fits-All — Built specifically for larger, standard-body dogs, not scaled up from a smaller pattern
- Five-Point Adjustment System — Dial in the exact fit across neck, chest, and body
- Quick Side-Release Buckles — Four buckles for fast, fumble-free gearing up
- Padded Main Body — Stays comfortable under the weight of a fully loaded MOLLE setup
- Minimal Chest for Maximum Airflow — The one part of the harness built deliberately unpadded
- Two Leash Attachment Points — Choose the control style that fits the moment
- Heavy-Duty Top Grab Handle — Reinforced for real weight, not just decoration
- Loop & MOLLE Panels — Room for patches on both sides plus gear attachment in between
- Extremely Lightweight, Extremely Durable — Laser-cut Cordura nylon with quality webbing and hardware throughout
SIZING
| Size | Chest | Back | Suggested Weight |
|---|---|---|---|
| XXX-Small | 12.5"–16" (32–43cm) | 5" (13cm) | 3–6 lb (1.4–2.7kg) |
| XX-Small | 14"–17" (36–43cm) | 5" (13cm) | 5–13 lb (2.3–5.9kg) |
| X-Small | 17"–24" (43–61cm) | 7.5" (19cm) | 12–23 lb (5.4–10.4kg) |
| Small | 19"–28" (48–71cm) | 9" (23cm) | 22–30 lb (10–13.6kg) |
| Medium | 21"–33" (53.5–84cm) | 10" (25.5cm) | 30–60 lb (13.6–27.2kg) |
Use either your dog's weight or chest measurement to find the right fit.

Loop Panel size for nametapes and moral patches.
| SIZE | LOOP PANEL |
| XXXS | 2” x 3.5” (5.1 x 8.9cm) |
| XXS | 2” x 4” (5.1 x 10.2cm) |
| XS | 2” x 4” (5.1 x 10.2cm) |
| S | 2” x 4” (5.1 x 10.2cm) |
| M | 3” X 5.5” (7.6 x 14cm) |
*Morale Patches Sold Separately
CARE & MAINTENANCE
To maintain the beauty and integrity of your purchase, we recommend treating it with care. Simple maintenance practices, such as gentle washing and proper storage, can effectively preserve the longevity of your favorites. We encourage you to refer to the care instructions included with each item, designed to help you keep your purchase in top condition.
SHIPPING & RETURNS
We strive to process and ship all orders in a timely manner, working diligently to ensure that your items are on their way to you as soon as possible. For All Products, we guarantee a less than 30 day delivery time. Most products take between 7-10 business days! Need to return something? Just let us know.