C4 Offset Folding Rear Sight

Name: C4 Offset Folding Rear Sight
Brand: Ultradyne USA
Availability: InStock

Ultradyne USA · Sights & Optics

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Best price

$159.99at OpticsPlanet

In stock Sale checked Oct 1, 2026

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Where to buy

Store	Price	Availability	Buy	Add to build
OpticsPlanet Best price	$159.99Salechecked Oct 1, 2026	In stock	Buy at OpticsPlanet
Brownells	$159.99checked Oct 1, 2026	Out of stock	Buy at Brownells

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Price history

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Lowest in-stock price in the last 30 days: $159.99 at OpticsPlanet. Dashed line = out of stock. Tracking since Sep 28, 2026.

Show the prices as a table

Store	Latest	Lowest	Highest
Brownells	$159.99	$159.99	$159.99
OpticsPlanet	$159.99	$159.99	$159.99

Since Sep 28, 2026.

About this part

The C4 Offset Folding Rear Sight is an iron sight from Ultradyne USA. It's sold by 2 stores, all at $159.99. The lowest in-stock price in the last 30 days was $159.99 at OpticsPlanet.

Specifications

Manufacturer: Ultradyne USA
Type: Iron Sights
Magnification class: 1x (non-magnified)

From the manufacturer

While iron sights have always been able to get people on target, they're often considered less precise than other optics options, as well as getting in the way of seeing the target at extended range. The Ultradyne C4 Offset Sights fix this problem by providing an innovative sight picture based on the company's Dynalign technology. This Ultradyne C4 rear sight provides AR-15 shooters with a rear aperture that, when combined with a compatible front sight, offers what the company calls a "circle-within-circle" sight picture, allowing users to simultaneously observe a target while dialing-in their iron optics. Mounts to any MIL-STL 1913 Picatinny rail Made Mfg: Ultradyne Usa