KHC PrecisionSensors · Optics · Parts
Progressive press instrumentation

An extra set of eyes on every stroke of your press.

KHC Precision builds small-batch precision electronics and accessories. Today's lineup serves progressive reloading presses: operator aids that signal anomalies during the loading cycle, plus B Team Engineering upgrade modules and DIY parts for self-builders — and, as an authorized dealer, shooting sports optics: red-dot sights, riflescopes, and mounts.

  • In-stock items only
  • Ships in 2–4 business days
  • Tracked · US only
  • Stripe checkout
01 / Catalog

What we build and sell

Everything in the store is on the shelf and ready to ship — we never list what we don’t have on hand.

Assembled

Sensors

Fully assembled operator-aid sensors for progressive reloading presses. They watch the loading cycle and signal anomalies so you can stop, check, and correct before the next stroke.

Shop sensors
Modules

B Team Engineering Upgrades

Electronic upgrade modules and accessories for your press setup. Confirm compatibility with your machine and configuration before ordering — ask us if you’re not sure.

Shop upgrades
DIY

Parts for Builders

Individual electronic components for self-assembly — fiber-optic sensor head and housing, NPN sensor power supply. You’re the builder and integrator on these, and the designs are open source — see the DIY designs page for build docs.

Shop parts
Authorized dealer

Optics

Red-dot sights, riflescopes, and mounting hardware from brands we’re authorized to sell — new, with the full manufacturer warranty. Find them at club events and local pickup, or browse the catalog for current pricing and availability.

See optics
02 / How ordering works

Small shop. Straight answers.

  • 01

    Built by the owner

    Every item is assembled, inspected, and packed personally — no warehouse, no middleman.

  • 02

    In-stock only

    If it’s in stock, it’s ready to ship. When something sells out, it’s marked out of stock until it’s back.

  • 03

    Ships in 2–4 business days

    Tracked carrier service to US addresses, with tracking sent to your email.

  • 04

    Secure Stripe checkout

    Payment is handled entirely by Stripe. Your card details never touch our servers.

  • 05

    Direct owner support

    Email or call/text the person who built your order — before or after you buy.

03 / Read this first

An operator aid — not a safety device.

Our sensors add a second layer of attention to your loading cycle, but like any electronic device they can fail, misread, or be installed incorrectly. Never rely on them in place of your own attention and safe reloading practice, and always test thoroughly with dummy or inert cases before any live loading.

The full safety warning is in the Terms of Service — please read it before use. Questions about installation or testing? Ask us first.

04 / Support

Talk to the person who built it.

Compatibility questions before you order, installation and testing help after — reach out any time.