Pre-Order Open

Always Know
Your Count.
No Guessing.

The first smart magazine baseplate with real-time round tracking. BLE connected. Built for professionals.

Reserve Early Access See How It Works
0g Added Profile Height
BLE 5.0 Wireless Protocol
● Live Real-Time Round Count
IP5X Field-Ready Rating
Built & engineered in the USA US-Designed
On orders over $100 Free Shipping
No-hassle return policy 30-Day Returns
Round tracking & customization Companion App
Agency & department pricing available LE Pricing
Founded & run by veterans Veteran Owned

The Product

Precision Built.
Purpose Driven.

The D3KR Smart Magazine Baseplate replaces your standard baseplate with a sealed sensor module that tracks your remaining rounds in real time — no moving parts, no electronics in the feed path, no compromises to reliability.

Data streams continuously to the D3KR app and optional HUD via BLE 5.0. Know your count. Track your sessions. Build real training data — not guesswork.

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D3KR Product render
Simple Setup

Three Steps.
Zero Guesswork.

01
Install

Drop In

Remove the factory baseplate. Slide on the D3KR assembly. Lock it in place. 60 seconds, no tools, no gunsmith, zero profile change.

Tool-Free Install
02
Pair

Connect

Open the D3KR app and pair over BLE 5.0. No account required. No config screens. The magazine identifies itself and syncs automatically.

BLE 5.0 Auto-Pair
03
Track

Know Your Count

Real-time round count on your phone, HUD, or Apple Watch. Every mag change and round fired is logged. Actual training data — not guesswork.

Real-Time + Logged

Why D3KR

Built Different.

Real-Time Count

No optical sensors. No magnets. No moving parts in the feed path — just an accurate live count, round by round.

BLE 5.0 Connected

Magazine talks to HUD. HUD talks to app. App logs training data. One platform, not four disconnected products.

No Profile Change

Dimensioned to OEM tolerances. Standard holster compatibility. It swaps in — nothing else changes.

Training Data

Round-by-round session logs. Consistency benchmarks. Actual data where there was only guesswork before.

Field-Ready Hardware

Built to withstand recoil, weather, and heavy use. Not a gadget. Not a prototype. A tool.

OTA Firmware Updates

New features and improvements delivered wirelessly. Your baseplate gets better over time — no disassembly required.

Inside The Build

Every Part.
Purpose Built.

  1. 01

    OEM-Spec Baseplate Shell

    Drop-in replacement dimensioned to factory tolerances. No holster changes. No profile change.

    Drop-In Fit
  2. 02

    Sensor Module

    Tracks your remaining count without entering the feed path. ±1 round accurate.

    Patent Pending
  3. 03

    ESP32-S3 Control Board

    Dual-core processor handles sensor fusion, BLE communication, and OTA firmware updates.

    BLE 5.0
  4. 04

    Rechargeable Li-Ion Cell

    Compact lithium-ion battery. USB-C charging. Engineered for extended field use.

    USB-C
  5. 05

    OLED Display Module

    High-contrast display readable in direct sunlight or total darkness. Real-time round count at a glance.

Platform Support

Works With
Your Platform.

Support for additional platforms is announced directly to waitlist subscribers.

GlockShipping
All 9mm platforms — Gen 3, 4, 59mm
AR-15Shipping
5.56 NATO / .223 Rem — PMAG5.56 · PMAG
S&W M&PComing
M&P 9, M&P 40 Full Size9mm / .40
Sig P320Coming
Full, Carry, Compact9mm
Sig P365Coming
P365, P365XL9mm
CZ P-10Coming
P-10C, P-10F9mm
HK VP9Coming
VP9, VP9SK9mm
Walther PDPComing
PDP Full, PDP Compact9mm
AR-10Coming
.308 Win / 7.62 NATO — PMAG.308 · PMAG
Request a platform →

Gallery

See It In Action.

Photo
Product — Front View
Photo
Product — Side Profile
Photo
Installed on Magazine
Video
B-Roll — Range Test
Photo
Detail — OLED Display
Video
B-Roll — Installation
Early Operators

Trusted by the People
Who Run It.

★★★★★
5.0 / 5 — Beta Program
★★★★★

Install took under a minute. No holster change. Count has been dead accurate across 400 rounds and three range sessions. This is the kit we've been asking manufacturers for.

T. VasquezPatrol Officer — Beta Tester
★★★★★

I run my students through high-round drills where accountability matters. The session logs alone are worth it — we now have actual data on where people are losing count under stress.

D. HargroveLead Firearms Instructor
★★★★★

Fits my Gen 5 19 perfectly. The HUD integration is seamless — count shows up exactly when I need it. Already recommended it to the whole quals team.

M. CallahanCompetitive Shooter — USPSA

Early Access

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