A handbuilt, purpose-built shot timer designed for serious shooters. Compact, precise, and field-ready — with a lavalier microphone input that puts the sensor exactly where you need it.
Standard headphone-style mic jack accepts a clip-on lavalier mic, letting you position the sensor right at the muzzle or on your body — not just wherever the box sits.
0.96" OLED with yellow header and blue body. Displays up to 10 shots per screen across 6 screens — 60 shots total. Scroll through split times, totals, and battery level.
Hold Start to monitor live mic peak level. Press Stop to exit, then hold Stop to enter the threshold setting screen — dial in 0–500 in steps of 10. No app, no Bluetooth, no fumbling.
Runs on a standard 9V USB-C rechargeable battery. No proprietary charging cable. Toss it in your range bag and top it off anywhere.
Custom-designed enclosure printed in PLA+ — tough, impact-resistant, and available in multiple tactical colorways. Socket head cap screws for clean, secure assembly.
Records up to 60 shots across 6 review screens. Press Stop to scroll through splits, total times per shot, and battery level. Everything you need, nothing you don't.
Full status indicator — solid white during the 5-second countdown after pressing Start, blinks continuously while actively listening for shots, then turns off when you press Stop. Also stays solid in the max sound and threshold screens. Bright enough to illuminate your bag when digging for gear.
Latching power button lights up blue the moment the timer is on — clear status at a glance, even in bright daylight. The enclosure has a raised guard structure around the button to keep it from getting bumped on in your range bag or pocket. Press once to power on, depress to power off.
| Display | 0.96" Dual-Color OLED |
| Microcontroller | Arduino Nano |
| Audio Input | 3.5mm Mic Jack (Lavalier) |
| Power | 9V USB-C Rechargeable |
| Sensitivity | Menu-Adjustable (0–500, steps of 10) |
| Resolution | ~10ms |
| Shot Memory | 60 Shots / 6 Screens |
| Enclosure | Custom FDM Print — PLA+ |
| Fasteners | Socket Head Cap Screws |
| Buttons | Green (Start) / Red (Stop) |
| Firmware | Proprietary v1.4.5 |
| Price | $75.00 USD |
| Origin | Handbuilt — Lexington, SC |
Green = Start. Press it to immediately begin recording at the default threshold of 150 — tested and working with AR-15 and pistol. Hold it to view the live mic peak level screen — see exactly how loud your shots register. Press Stop to exit that screen.
Red = Stop. Hold it to enter the threshold setting screen — choose your sensitivity from 0–500 in steps of 10. Press Stop again to save and exit. After a timed run, press Stop to scroll through results — split times, total times, battery level — one screen at a time. Up to 60 shots across 6 screens.
When you're ready to run, press Start. The buzzer fires after a 5-second delay. Draw, engage, and let the MK1 do the rest.
Attach the lavalier to your shirt or gear. Plug the mic jack into the MK1.
Hold Start to view the max sound level screen. Press Stop to exit, then hold Stop to enter the threshold screen — set 0–500 in steps of 10, then press Stop to save and exit.
Buzzer fires after a 5-second delay. Draw and engage — the MK1 captures every shot.
Press Stop to scroll through 6 screens of data — splits, totals, and battery level.
Huckleberry Innovations is a one-person maker operation out of Lexington, South Carolina. Every Shot Timer MK1 is handbuilt, individually tested, and shipped by the founder.
The MK1 exists because commercial shot timers are either overpriced, fragile, or frustrating to use. This one is purpose-built, repairable, and honest about what it is: a precision tool you can hand to a new shooter without a tutorial.
Every wire soldered, every bolt torqued, every unit tested at the range before it ships.
10 tactical color schemes — Desert Sage, Flat Dark Earth, Ranger Green, Night Ops, and more. Use the interactive configurator to preview your build before you order.
Available now — shipping direct from Lexington, SC.
$75 USD / UNIT